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CVE-2026-34093

CVE-2026-34093 · Special:UserRights allows viewing user rights from private wiki

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Specials/SpecialUserRights.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 1.1 · Low · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • mediawiki

    Versions
    • ≥ *, < 1.43.7, 1.44.4, 1.45.2: Affected (semver)

    Update to 1.43.7, 1.44.4, 1.45.2

  • mediawiki Debian:12

    Versions
    • 1:1.39.10-1
    • 1:1.39.10-1~deb12u1
    • 1:1.39.12-1~deb12u1
    • 1:1.39.13-1~deb12u1
    • 1:1.39.17-1~deb12u1
    • 1:1.39.2-1
    • 1:1.39.4-1
    • 1:1.39.4-1~deb12u1
    • 1:1.39.4-2
    • 1:1.39.5-1
    • 1:1.39.5-1~deb12u1
    • 1:1.39.6-1
    • 1:1.39.7-1
    • 1:1.39.7-1~deb12u1
    • 1:1.39.8-1
    Affected ranges
    • ECOSYSTEM: < 1:1.39.17-1+deb12u2

    Update to 1:1.39.17-1+deb12u2

  • mediawiki Debian:13

    Versions
    • 1:1.43.3+dfsg-1
    • 1:1.43.5+dfsg-1
    • 1:1.43.6+dfsg-1
    • 1:1.43.6+dfsg-1~deb13u1
    • 1:1.43.6+dfsg-2
    Affected ranges
    • ECOSYSTEM: < 1:1.43.8+dfsg-1~deb13u1

    Update to 1:1.43.8+dfsg-1~deb13u1

  • mediawiki Debian:14

    Versions
    • 1:1.43.3+dfsg-1
    • 1:1.43.5+dfsg-1
    • 1:1.43.6+dfsg-1
    • 1:1.43.6+dfsg-1~deb13u1
    • 1:1.43.6+dfsg-2
    • 1:1.43.8+dfsg-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 1:1.43.8+dfsg-1

    Update to 1:1.43.8+dfsg-1

  • mediawiki Ubuntu:18.04:LTS

    Versions
    • 1:1.27.3-1
    • 1:1.27.4-1
    • 1:1.27.4-2
    • 1:1.27.4-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mediawiki Ubuntu:Pro:20.04:LTS

    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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mediawiki Ubuntu:Pro:22.04:LTS

    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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mediawiki Ubuntu:Pro:24.04:LTS

    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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mediawiki Ubuntu:25.10

    Versions
    • 1:1.43.1+dfsg-1
    • 1:1.43.1+dfsg-2
    • 1:1.43.3+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mediawiki Ubuntu:26.10

    Versions
    • 1:1.43.8+dfsg-2
    • 1:1.43.9+dfsg-1
    • 1:1.43.9+dfsg-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mediawiki Ubuntu:26.04:LTS

    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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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