Vulnerability-Lookup

CVE-2021-38314 (GCVE-0-2021-38314)

Vulnerability from cvelistv5 – Published: 2021-09-02 16:53 – Updated: 2025-05-05 14:49

Title

Gutenberg Template Library & Redux Framework <= 4.2.11 Sensitive Information Disclosure

Summary

The Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of '-redux' and an md5 hash of the previous hash with a known salt value of '-support'. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site's PHP version, and an unsalted md5 hash of site’s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-05 14:49 UTC

CWE

CWE-200 - Information Exposure
CWE-760 - Use of a One-Way Hash with a Predictable Salt

Assigner

Wordfence mitre root

References

1 reference

URL	Tags
https://www.wordfence.com/blog/2021/09/over-1-mil…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Redux.io	Gutenberg Template Library & Redux Framework	Affected: 4.2.11 , ≤ 4.2.11 (custom)

Date Public

2021-09-01 00:00

Credits

Ramuel Gall, Wordfence

Show details on NVD website

JSON

To clipboard

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EUVD-2026-42119

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-03 10:45

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-03T10:45:24.120907+00:00",
  "id": "EUVD-2026-42119"
}

FKIE_CVE-2021-38314

Vulnerability from fkie_nvd - Published: 2021-09-02 17:15 - Updated: 2026-06-17 04:01

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	security@wordfence.com	https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/	Exploit, Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	redux	gutenberg_template_library_\&_redux_framework	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Gutenberg Template Library \u0026 Redux Framework",
          "vendor": "Redux.io",
          "versions": [
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      ],
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    }
  ],
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    },
    {
      "lang": "es",
      "value": "El plugin Gutenberg Template Library \u0026amp; Redux Framework versiones anteriores a 4.2.11 incluy\u00e9ndola para WordPress, registraba varias acciones AJAX disponibles para usuarios no autenticados en la funci\u00f3n \"includes\" en el archivo \"redux-core/class-redux-core.php\" que eran \u00fanicas para un sitio determinado pero deterministas y predecibles dado que se basaban en un hash md5 de la URL del sitio con un valor de salt conocido de \"-redux\" y un hash md5 del hash anterior con un valor de salt conocido de \"-support\". Estas acciones AJAX podr\u00edan ser usadas para recuperar una lista de plugins activos y sus versiones, la versi\u00f3n PHP del sitio, y un hash md5 sin salt de la \"AUTH_KEY\" del sitio concatenada con la \"SECURE_AUTH_KEY\""
    }
  ],
  "id": "CVE-2021-38314",
  "lastModified": "2026-06-17T04:01:50.840",
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          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-38314",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-05T14:49:45.607205Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-09-02T17:15:09.777",
  "references": [
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-760"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-916"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-H223-3FMJ-VHG5

Vulnerability from github – Published: 2022-05-24 22:28 – Updated: 2023-07-10 21:30

Details

The Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the includes function in redux-core/class-redux-core.php that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of '-redux' and an md5 hash of the previous hash with a known salt value of '-support'. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site's PHP version, and an unsalted md5 hash of site’s AUTH_KEY concatenated with the SECURE_AUTH_KEY.

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-38314"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-916"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-09-02T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The Gutenberg Template Library \u0026 Redux Framework plugin \u003c= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of \u0027-redux\u0027 and an md5 hash of the previous hash with a known salt value of \u0027-support\u0027. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site\u0027s PHP version, and an unsalted md5 hash of site\u2019s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`.",
  "id": "GHSA-h223-3fmj-vhg5",
  "modified": "2023-07-10T21:30:52Z",
  "published": "2022-05-24T22:28:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38314"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-38314

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-38314

Aliases

CVE-2021-38314

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-38314",
    "description": "The Gutenberg Template Library \u0026 Redux Framework plugin \u003c= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of \u0027-redux\u0027 and an md5 hash of the previous hash with a known salt value of \u0027-support\u0027. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site\u0027s PHP version, and an unsalted md5 hash of site\u2019s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`.",
    "id": "GSD-2021-38314"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-38314"
      ],
      "details": "The Gutenberg Template Library \u0026 Redux Framework plugin \u003c= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of \u0027-redux\u0027 and an md5 hash of the previous hash with a known salt value of \u0027-support\u0027. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site\u0027s PHP version, and an unsalted md5 hash of site\u2019s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`.",
      "id": "GSD-2021-38314",
      "modified": "2023-12-13T01:23:17.451376Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@wordfence.com",
        "DATE_PUBLIC": "2021-09-01T00:00:00.000Z",
        "ID": "CVE-2021-38314",
        "STATE": "PUBLIC",
        "TITLE": "Gutenberg Template Library \u0026 Redux Framework \u003c= 4.2.11 Sensitive Information Disclosure"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Gutenberg Template Library \u0026 Redux Framework",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "4.2.11",
                          "version_value": "4.2.11"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Redux.io"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Ramuel Gall, Wordfence"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The Gutenberg Template Library \u0026 Redux Framework plugin \u003c= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of \u0027-redux\u0027 and an md5 hash of the previous hash with a known salt value of \u0027-support\u0027. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site\u0027s PHP version, and an unsalted md5 hash of site\u2019s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-200 Information Exposure"
              }
            ]
          },
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-760 Use of a One-Way Hash with a Predictable Salt"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/",
            "refsource": "MISC",
            "url": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/"
          }
        ]
      },
      "source": {
        "discovery": "INTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:redux:gutenberg_template_library_\\\u0026_redux_framework:*:*:*:*:*:wordpress:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.2.11",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@wordfence.com",
          "ID": "CVE-2021-38314"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "The Gutenberg Template Library \u0026 Redux Framework plugin \u003c= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of \u0027-redux\u0027 and an md5 hash of the previous hash with a known salt value of \u0027-support\u0027. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site\u0027s PHP version, and an unsalted md5 hash of site\u2019s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-916"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-07-10T19:25Z",
      "publishedDate": "2021-09-02T17:15Z"
    }
  }
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2021-38314 (GCVE-0-2021-38314)

EUVD-2026-42119

FKIE_CVE-2021-38314

GHSA-H223-3FMJ-VHG5

GSD-2021-38314

Tags

Sightings

Nomenclature

Related by attack behaviour