Rapid7 Vulnerability & Exploit Database

MediaWiki: Unquoted Search Path or Element (CVE-2021-31553)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

MediaWiki: Unquoted Search Path or Element (CVE-2021-31553)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:P)
Published
04/22/2021
Created
04/27/2021
Added
04/26/2021
Modified
04/26/2021

Description

An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking.

Solution(s)

  • mediawiki-upgrade-latest

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;