CVE-2026-13706 Wikimedia Foundation CVE debrief

Who should care

Users of MediaWiki versions 1.43.0 to 1.43.9, 1.44.0 to 1.44.6, and 1.45.0 to 1.45.4, as well as 1.46.0:rc0, should review and apply patches. This includes operators, platform administrators, vulnerability management teams, and security teams who manage these versions.

Technical summary

The vulnerability is associated with program files includes/UrlShortenerUtils.Php. It has been categorized under CWE-20. The CVSS score is not provided, but the CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. Affected MediaWiki versions include 1.43.0 to 1.43.9, 1.44.0 to 1.44.6, and 1.45.0 to 1.45.4, as well as 1.46.0:rc0.

Defensive priority

Medium priority for MediaWiki users, as the vulnerability requires low attack complexity and privileges.

Recommended defensive actions

• Review and apply patches for affected MediaWiki versions
• Inventory and verify MediaWiki installations
• Monitor for potential exploitation attempts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

Evidence is limited; official CVE and NVD records provide some detail. Further verification is recommended. The CVE record was published on 2026-07-01T16:16:31.617Z and has not been modified since then. The NVD entry is currently Analyzed. Affected MediaWiki versions include 1.43.0 to 1.43.9, 1.44.0 to 1.44.6, and 1.45.0 to 1.45.4, as well as 1.46.0:rc0. Users should review and apply patches. The vulnerability is associated with program files includes/UrlShortenerUtils.Php.

Official resources