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PatchSiren cyber security CVE debrief

CVE-2026-13706 Wikimedia Foundation CVE debrief

CVE-2026-13706 is an improper input validation vulnerability in Wikimedia Foundation UrlShortener. 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. This 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. 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.

Vendor
Wikimedia Foundation
Product
UrlShortener
CVSS
NONE
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-01
Original CVE updated
2026-07-09
Advisory published
2026-07-01
Advisory updated
2026-07-09

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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-13706 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-13706

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-13706 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-13706

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://phabricator.wikimedia.org/T418533

    c4f26cc8-17ff-4c99-b5e2-38fc1793eacc - Permissions Required

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.