UBUNTU-CVE-2021-30158 (CVE-2021-30158)

Vulnerability from osv_ubuntu – Published: 2021-04-06 07:15 – Updated: 2026-05-27 10:01 – Source website
VLAI
Details

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mediawiki",
            "binary_version": "1:1.27.4-3"
          },
          {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.27.4-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mediawiki",
        "purl": "pkg:deb/ubuntu/mediawiki@1:1.27.4-3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.27.3-1",
        "1:1.27.4-1",
        "1:1.27.4-2",
        "1:1.27.4-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mediawiki",
            "binary_version": "1:1.31.7-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.31.7-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "mediawiki",
        "purl": "pkg:deb/ubuntu/mediawiki@1:1.31.7-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.31.2-1ubuntu1",
        "1:1.31.5-1",
        "1:1.31.5-1ubuntu1",
        "1:1.31.5-2",
        "1:1.31.5-3",
        "1:1.31.5-3ubuntu1",
        "1:1.31.6-1",
        "1:1.31.7-1",
        "1:1.31.7-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mediawiki",
            "binary_version": "1:1.35.6-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.35.6-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "mediawiki",
        "purl": "pkg:deb/ubuntu/mediawiki@1:1.35.6-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.35.3-1",
        "1:1.35.4-1",
        "1:1.35.5-1",
        "1:1.35.5-1ubuntu1",
        "1:1.35.5-1ubuntu2",
        "1:1.35.5-1ubuntu3",
        "1:1.35.6-1",
        "1:1.35.6-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mediawiki",
            "binary_version": "1:1.39.7-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.39.7-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "mediawiki",
        "purl": "pkg:deb/ubuntu/mediawiki@1:1.39.7-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.39.4-2",
        "1:1.39.5-1",
        "1:1.39.6-1",
        "1:1.39.7-1",
        "1:1.39.7-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mediawiki",
            "binary_version": "1:1.43.3+dfsg-1"
          },
          {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.43.3+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "mediawiki",
        "purl": "pkg:deb/ubuntu/mediawiki@1:1.43.3+dfsg-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.43.1+dfsg-1",
        "1:1.43.1+dfsg-2",
        "1:1.43.3+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mediawiki",
            "binary_version": "1:1.43.8+dfsg-2"
          },
          {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.43.8+dfsg-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "mediawiki",
        "purl": "pkg:deb/ubuntu/mediawiki@1:1.43.8+dfsg-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.43.3+dfsg-1",
        "1:1.43.5+dfsg-1",
        "1:1.43.6+dfsg-2",
        "1:1.43.8+dfsg-1",
        "1:1.43.8+dfsg-2"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.",
  "id": "UBUNTU-CVE-2021-30158",
  "modified": "2026-05-27T10:01:53Z",
  "published": "2021-04-06T07:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-30158"
    },
    {
      "type": "REPORT",
      "url": "https://phabricator.wikimedia.org/T277009"
    },
    {
      "type": "REPORT",
      "url": "https://gerrit.wikimedia.org/r/c/mediawiki/core/+/670546"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-30158"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-30158"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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