CVE-2026-100383

UNKNOWN 0.0

Stored i18n XSS in WikiLambda's VisualEditor integration

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	wikimedia foundation
Product	mediawiki - wikilambda extension
Published	Sep 25, 2026

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Affected Versions

Wikimedia Foundation / Mediawiki - WikiLambda Extension

1.47.0-alpha

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

SomeRandomDeveloper