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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-39838

ProofreadPage improperly sanitizes multiline styles using Sanitizer::checkCSS

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
wikimedia-foundation

Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows XSS Targeting Non-Script Elements. The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Wikimedia Foundation MediaWiki - ProofreadPage Extension

Default version status: unaffected

  • 0 to < 1.43affected
  • 1.43unaffected
  • 1.44unaffected
  • 1.45unaffected

References