What is CVE-2026-13706?

CVE-2026-13706 is a high-severity vulnerability in MediaWiki, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-07-01.

How severe is CVE-2026-13706?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in MediaWiki

CVE-2026-13706

Improper input validation vulnerability in Wikimedia Foundation UrlShortener. This vulnerability is associated with program files includes/UrlShortenerUtils.Php.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mediawiki — versions 1.46.0
Wikimedia Foundation Urlshortener

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2026-13706?: CVE-2026-13706 is a high-severity vulnerability in MediaWiki, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-07-01.
How severe is CVE-2026-13706?: High severity. CVSS v3 base score is 8.8 out of 10.