Medium severity4.8NVD Advisory· Published Oct 6, 2021· Updated Jun 17, 2026
CVE-2021-42042
CVE-2021-42042
Description
An issue was discovered in SpecialEditGrowthConfig in the GrowthExperiments extension in MediaWiki through 1.36.2. The growthexperiments-edit-config-error-invalid-title MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript.
AI Insight
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Affected products
5- Range: <=1.36.2
- MediaWiki/GrowthExperiments extensiondescription
Patches
Vulnerability mechanics
References
2- gerrit.wikimedia.org/r/q/Ibeb13d032ca044af53f6b2334e27b6b97b6f4e9fnvdPatchVendor Advisory
- phabricator.wikimedia.org/T290692nvdIssue TrackingPatchVendor Advisory
News mentions
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