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.

CVSS Metrics

• v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
• v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.51%• Percentile: 67%

Techniques & Countermeasures

• CWE-306•Missing Authentication for Critical Function

  The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Affected Systems

• debian•debian_linux

  9.0

• mediawiki•mediawiki

  ≥ 1.27.0, ≤ 1.32.1

References (5)

• https://lists.wikimedia.org/pipermail/mediawiki-announce/
• https://www.debian.org/security/2019/dsa-4460
• https://seclists.org/bugtraq/2019/Jun/12
• https://phabricator.wikimedia.org/T197279
• https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html