CVE-2019-12468

CRITICAL9.8EPSS 0.51%

Wikimedia MediaWiki Incorrect Access Control vulnerability

Published: 5/24/2022Modified: 4/28/2026

Also known as:GHSA-wrhx-3pxr-6vggDEBIAN-CVE-2019-12468

Description

An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.27.0 through 1.32.1. Directly POSTing to Special:ChangeEmail would allow for bypassing re-authentication, allowing for potential account takeover.

Affected packages (2)

Debian/mediawikifrom 0, < 1:1.31.2-1
Packagist/mediawiki/core>= 1.27.0, < 1.27.6

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	CRITICAL9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (9)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-12468
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-12468
PATCHhttps://github.com/wikimedia/mediawiki
WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12468.yaml
WEBhttps://lists.wikimedia.org/pipermail/mediawiki-announce
WEBhttps://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
WEBhttps://phabricator.wikimedia.org/T197279
WEBhttps://seclists.org/bugtraq/2019/Jun/12
WEBhttps://www.debian.org/security/2019/dsa-4460