CVE-2021-31553

An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2

published April 22, 2021

CVSS
—
EPSS
1%
Percentile
72.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01400 · 72.3th percentile
Published
2021-04-22T02:29Z
EPSS history
Timeline
  • 22 APR 02:29Z
    An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2
    cvelistv5