CVE catalog

CVE-2020-10960

mediawiki affected and fixed versions

[CVE catalog]

In MediaWiki before 1.34.1, users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM nodes via HTML content within a MediaWiki page. This occurs because jquery.makeCollapsible allows applying an event handler to any Cascading Style Sheets (CSS) selector. There is no known way to exploit this for cross-site scripting (XSS).

Severity
Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published
Source
[NVD] · [CVE record]
EPSS
1.15% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Debiantrixie-securitymediawiki1:1.43.9+dfsg-1~deb13u1Fixed[CVE-2020-10960]
Debiantrixiemediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debiantrixiemediawiki1:1.43.9+dfsg-1~deb13u1Fixed[CVE-2020-10960]
Debiansidmediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debiansidmediawiki1:1.43.11+dfsg-3Fixed[CVE-2020-10960]
Debianforkymediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debianforkymediawiki1:1.43.11+dfsg-1Fixed[CVE-2020-10960]
Debianbookworm-securitymediawiki1:1.39.17-1+deb12u2Fixed[CVE-2020-10960]
Debianbookwormmediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debianbookwormmediawiki1:1.39.17-1+deb12u2Fixed[CVE-2020-10960]

Showing 10 fix observations. All 14 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debianbookwormmediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debianbookwormmediawiki1:1.39.17-1+deb12u2Fixed[CVE-2020-10960]
Debianbookworm-securitymediawiki1:1.39.17-1+deb12u2Fixed[CVE-2020-10960]
Debianforkymediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debianforkymediawiki1:1.43.11+dfsg-1Fixed[CVE-2020-10960]
Debiansidmediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debiansidmediawiki1:1.43.11+dfsg-3Fixed[CVE-2020-10960]
Debiantrixiemediawiki1:1.31.7-1FixedDistribution-reported fixed boundary[CVE-2020-10960]
Debiantrixiemediawiki1:1.43.9+dfsg-1~deb13u1Fixed[CVE-2020-10960]
Debiantrixie-securitymediawiki1:1.43.9+dfsg-1~deb13u1Fixed[CVE-2020-10960]
Ubuntu18.04mediawiki1:1.27.3-1UnknownSource applicability is not established[UBUNTU-CVE-2020-10960]
Ubuntu18.04mediawiki1:1.27.4-1UnknownSource applicability is not established[UBUNTU-CVE-2020-10960]
Ubuntu18.04mediawiki1:1.27.4-2UnknownSource applicability is not established[UBUNTU-CVE-2020-10960]
Ubuntu18.04mediawiki1:1.27.4-3UnknownSource applicability is not established[UBUNTU-CVE-2020-10960]
Original provider fields
{
  "package_releases": [
    {
      "name": "mediawiki",
      "status": "fixed",
      "release": "sid",
      "version": "1:1.43.11+dfsg-3"
    },
    {
      "name": "mediawiki",
      "status": "fixed",
      "release": "forky",
      "version": "1:1.43.11+dfsg-1"
    },
    {
      "name": "mediawiki",
      "status": "fixed",
      "release": "trixie",
      "version": "1:1.43.9+dfsg-1~deb13u1"
    },
    {
      "name": "mediawiki",
      "status": "fixed",
      "release": "trixie-security",
      "version": "1:1.43.9+dfsg-1~deb13u1"
    },
    {
      "name": "mediawiki",
      "status": "fixed",
      "release": "bookworm",
      "version": "1:1.39.17-1+deb12u2"
    },
    {
      "name": "mediawiki",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "1:1.39.17-1+deb12u2"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "mediawiki",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "1:1.31.7-1"
    },
    {
      "bug": null,
      "name": "mediawiki",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "1:1.31.7-1"
    },
    {
      "bug": null,
      "name": "mediawiki",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "1:1.31.7-1"
    },
    {
      "bug": null,
      "name": "mediawiki",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "1:1.31.7-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "mediawiki",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "1:1.27.3-1",
        "1:1.27.4-1",
        "1:1.27.4-2",
        "1:1.27.4-3"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-10960",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2020-10960",
      "provider_updated_at": "2025-10-24T04:48:24Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [mediawiki]Unknown
    Details (4)

    • 1:1.39.17-1+deb12u2 · all · bookworm

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

    • 1:1.39.17-1+deb12u2 · all · bookworm

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

    • 1:1.39.17-1+deb12u2 · all · bookworm-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

    • 1:1.39.17-1+deb12u2 · all · bookworm-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

  • [mediawiki-classes]Unknown

    Source package: [mediawiki]

    Details (4)

    • 1:1.39.17-1+deb12u2 · all · bookworm

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

    • 1:1.39.17-1+deb12u2 · all · bookworm

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

    • 1:1.39.17-1+deb12u2 · all · bookworm-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

    • 1:1.39.17-1+deb12u2 · all · bookworm-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

[Debian 13 (Trixie)]

  • [mediawiki]Unknown
    Details (4)

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

  • [mediawiki-classes]Unknown

    Source package: [mediawiki]

    Details (4)

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

    • 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security

      Fixed · Fixed: 1:1.31.7-1

      dsa · mediawiki · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]