Name: MediaWiki: CVE-2026-34092: Exposure of Sensitive Information to an Unauthorized Actor
Creator: Rapid7
Published: 2026-05-11T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-34092, CWE-200, CVSS 7.5, EPSS 0.00237

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 Details

CVSS 4.0 Base Score: 2.1 (LOW)
CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade mediawiki	Apr 14, 2026	Apr 14, 2026
Mediawiki	—	Upgrade MediaWiki to the latest version	May 15, 2026	May 11, 2026
Ubuntu	—	Upgrade mediawiki (Ubuntu Pro)	May 25, 2026	May 11, 2026

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CVSS Details

Covered by Rapid7

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