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CVE-2026-34092

CVE-2026-34092 · Block UI elements in 'tools'-sidebar shows presence of an autoblocked IP

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/Skin/Skin.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 2.1 · 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: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
    Affected ranges
    • ECOSYSTEM: < 1:1.39.7-1ubuntu0.1~esm1

    Update to 1:1.39.7-1ubuntu0.1~esm1

  • 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

    Affected ranges
    • ECOSYSTEM: < 1:1.43.8+dfsg-2

    Update to 1:1.43.8+dfsg-2

  • 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
    Affected ranges
    • ECOSYSTEM: < 1:1.43.8+dfsg-2

    Update to 1:1.43.8+dfsg-2

Original sources

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