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Findings

CVE-2026-39936

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross…

Published Apr 7, 2026 · updated Jul 21, 2026

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting (XSS). The issue has been remediated on the branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 7, 2026 · NIST NVD

    Detected

    Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting (XSS). The issue has been remediated on the branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.

  2. Jul 21, 2026 · NIST NVD

    Updated

    Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting (XSS). The issue has been remediated on the branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.

Sources

  • CVE.orgVulnerability recordCVE-2026-39936

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-39936

    Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting (XSS). The issue has been remediated on the branch, and in the release branches for Medi

    nvd.nist.gov

References