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CVE-2025-62671: Cargo Mediawiki Extension vulnerable to Cross-site Scripting

October 18, 2025 (updated November 10, 2025)

Improper Neutralization of Input During Web Page Generation (XSS or ‘Cross-site Scripting’) vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS. This issue affects Mediawiki - Cargo Extension befor 3.8.3.

References

  • gerrit.wikimedia.org/r/1179707
  • github.com/advisories/GHSA-gr6v-3pmp-996p
  • github.com/wikimedia/mediawiki-extensions-Cargo
  • github.com/wikimedia/mediawiki-extensions-Cargo/commit/e50915626c0d9a7b222dabc94ddfcb516caf557d
  • nvd.nist.gov/vuln/detail/CVE-2025-62671
  • phabricator.wikimedia.org/T402147

Code Behaviors & Features

Detect and mitigate CVE-2025-62671 with GitLab Dependency Scanning

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Affected versions

All versions before 3.8.3

Fixed versions

  • 3.8.3

Solution

Upgrade to version 3.8.3 or above.

Impact 8.3 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/mediawiki/cargo/CVE-2025-62671.yml

Spotted a mistake? Edit the file on GitLab.

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