PT-2019-3409 · Wikimedia+1 · Mediawiki+1

Liangent · Published 2019-06-06 · Updated 2025-09-29 · CVE-2019-12466

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions MediaWiki versions through 1.32.1

Description The issue is related to a component of the MediaWiki CMS for collaborative websites, which is vulnerable to cross-site request forgery (CSRF). This could allow a remote attacker to access confidential data, compromise its integrity, and cause a denial of service. The vulnerability is specifically noted in the logout feature.

Recommendations For MediaWiki versions through 1.32.1, update to a version that includes a fix for this issue to prevent CSRF attacks. As a temporary workaround, consider restricting access to the logout feature until a patch is available.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

ALSA-2025_16880

ALT-PU-2019-2016

ALT-PU-2019-2054

BDU:2019-03562

CVE-2019-12466

DSA-4460-1

GHSA-27FW-R78J-H898

MGASA-2019-0279

Affected Products

Alt Linux

Mediawiki

References · 23

• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12466.yaml · Exploit
• https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html · Patch
• https://bdu.fstec.ru/vul/2019-03562 · Security Note
• https://debian.org/security/2019/dsa-4460 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-12466 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12466 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-12466 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0279.html · Security Note
• https://phabricator.wikimedia.org/T25227 · Patch
• https://osv.dev/vulnerability/DSA-4460-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-12466 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-12466 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12466 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-27fw-r78j-h898 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0279 · Vendor Advisory