CVE-2025-32073: System message XSS in HTMLTags

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 - HTML Tags allows Cross-Site Scripting (XSS).This issue affects Mediawiki - HTML Tags: from 1.39 through 1.43.

Affected products

The Wikimedia Foundation Mediawiki - HTML Tags: from 1.39 through 1.43

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/HTMLTags/+/1121056
https://phabricator.wikimedia.org/T386337

Get alerted when CVE-2025-32073 or the next vulnerability affects your stack