CVE-2026-58035 — Stored XSS through a system message in the codex version of Special:Block

CVE-2026-58035

Stored XSS through a system message in the codex version of Special:Block PUBLISHED

Description (CNA)

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.Special.Block/SpecialBlock.Vue.

Affected (CNA)

Vendor / product	Versions
Wikimedia Foundation / MediaWiki	affected 1.46.0-rc.0 before 1.46.0

CWE

CWE-79

References

https://phabricator.wikimedia.org/T428809

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.