CVE-2025-32069: Wikitext stored XSS on filepages due to dangerous WBMI serialization

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-11 · updated 2026-06-17
Weakness: CWE-20

Description

Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Media Info Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Wikibase Media Info Extension: from 1.39 through 1.43.

Affected products

The Wikimedia Foundation Mediawiki - Wikibase Media Info Extension: from 1.39 through 1.43

References

https://gerrit.wikimedia.org/r/q/Ie969a8cfeab0d4457417773fa884e271968e5657
https://phabricator.wikimedia.org/T387691

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