PT-2024-28932 · Mediawiki+1 · Mediawiki Checkuser Extension+1

Dreamy_Jazz · Published 2024-07-06 · Updated 2025-06-19 · CVE-2024-40596

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MediaWiki CheckUser extension versions through 1.42.1

Description The Special:Investigate feature can expose suppressed information for log events due to the TimelineService not supporting proper suppression.

Recommendations For versions through 1.42.1, consider disabling the Special:Investigate feature until a patch is available to prevent the exposure of suppressed information. Restrict access to the TimelineService to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Insertion into Log File

Weakness Enumeration

CWE-532

Related Identifiers

ALT-PU-2025-5905

BIT-MEDIAWIKI-2024-40596

CVE-2024-40596

Affected Products

Alt Linux

Mediawiki Checkuser Extension

References · 9

• https://osv.dev/vulnerability/BIT-mediawiki-2024-40596 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-40596 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-40596 · Security Note
• https://t.me/cvenotify/85545 · Telegram Post
• https://twitter.com/CVEnew/status/1809733864543461696 · Twitter Post
• https://t.me/cvenotify/85312 · Telegram Post
• https://t.me/cvedetector/157 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1809825193579233756 · Twitter Post
• https://phabricator.wikimedia.org/T326866 · Note