CVE-2025-6590

published 2026-02-02

CVE-2025-6590: Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files…

Priority P4 25 medium 4.6 CVSS 4.0

AV N AC H AT P PR N UI A VC L VI N VA N SC H 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

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLUserTextField.Php.

This issue affects MediaWiki: from * through 1.39.12, 1.42.76 1.43.1, 1.44.0.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	mediawiki	< mediawiki 1:1.39.13-1~deb12u1 (bookworm)	mediawiki 1:1.39.13-1~deb12u1 (bookworm)
mediawiki	mediawiki	>= 0 < 1:1.35.13-1+deb11u4	1:1.35.13-1+deb11u4
mediawiki	mediawiki	>= 0 < 1:1.39.13-1~deb12u1	1:1.39.13-1~deb12u1
mediawiki	mediawiki	>= 0 < 1:1.43.3+dfsg-1	1:1.43.3+dfsg-1
mediawiki	mediawiki	>= 0 < 1:1.43.3+dfsg-1	1:1.43.3+dfsg-1
wikimedia_foundation	mediawiki	* – 1.39.12, 1.42.76 1.43.1, 1.44.0	—

CVSS provenance

nvd v4.0 4.6 MEDIUM CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/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

osv 4.6 MEDIUM

vendor_debian 4.6 MEDIUM

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CWE-200