PT-2019-3446 · Mediawiki+1 · Mediawiki+1

Bawolff · Published 2019-06-07 · Updated 2025-09-29 · CVE-2019-12468

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions MediaWiki versions 1.27.0 through 1.32.1

Description The issue is related to an Incorrect Access Control vulnerability that allows for bypassing re-authentication. This can be exploited by directly POSTing to the "Special:ChangeEmail" endpoint, potentially leading to account takeover, unauthorized access to protected information, and impact on data integrity.

Recommendations For MediaWiki versions 1.27.0 through 1.32.1, consider restricting access to the "Special:ChangeEmail" endpoint until a patch is available. As a temporary workaround, disabling the re-authentication bypass functionality may help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Authentication

Improper Access Control

Weakness Enumeration

CWE-306

CWE-284

Related Identifiers

ALSA-2025_16880

ALT-PU-2019-2016

ALT-PU-2019-2054

BDU:2019-03617

CVE-2019-12468

DSA-4460-1

GHSA-WRHX-3PXR-6VGG

MGASA-2019-0279

Affected Products

Alt Linux

Mediawiki

References · 24

• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12468.yaml · Exploit
• https://osv.dev/vulnerability/CVE-2019-12468 · Vendor Advisory
• https://phabricator.wikimedia.org/T197279 · Patch
• https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html · Patch
• https://debian.org/security/2019/dsa-4460 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12468 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-12468 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12468 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-03617 · Security Note
• https://advisories.mageia.org/MGASA-2019-0279.html · Security Note
• https://osv.dev/vulnerability/DSA-4460-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-12468 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-wrhx-3pxr-6vgg · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-12468 · Security Note
• https://osv.dev/vulnerability/MGASA-2019-0279 · Vendor Advisory