Description

Improper Input Validation vulnerability in The Wikimedia Foundation Mediawiki - Wikidata Extension allows Cross-Site Scripting (XSS) from widthheight message via ImageHandler::getDimensionsString()This issue affects Mediawiki - Wikidata Extension: from 1.39 through 1.43.

Classification

CVE ID: CVE-2025-32071

CVSS Base Severity: CRITICAL

CVSS Base Score: 10.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected Products

Vendor: The Wikimedia Foundation

Product: Mediawiki - Wikidata Extension

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.1% (probability of being exploited)

EPSS Percentile: 29.05% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-32071
https://phabricator.wikimedia.org/T389369
https://gerrit.wikimedia.org/r/q/Iac1f1c27054bfd1a4a4251281ab8c72f59204a90

Timeline