CVE-2026-58032: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability…

PriorityP426medium6.1CVSS 3.1

AVNACLPRNUIRSCCLILAN

EPSS

0.30%

21.9th percentile

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Api/index.Js. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
mediawiki	mediawiki	—	—
mediawiki	mediawiki	>= 1.43.0 < 1.43.9	1.43.9
mediawiki	mediawiki	>= 1.44.0 < 1.44.6	1.44.6
mediawiki	mediawiki	>= 1.45.0 < 1.45.4	1.45.4
wikimedia_foundation	mediawiki	>= * < 1.46.0, 1.45.4, 1.44.6, 1.43.9	1.46.0, 1.45.4, 1.44.6, 1.43.9

CVSS provenance

nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

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