CVE-2026-100383

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Cross-Site Scripting (XSS). This issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.

References

• https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1326391
• https://phabricator.wikimedia.org/T434967