CVE-2021-31553

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-31553
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31553.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-31553
Aliases
Published
2021-04-22T03:15:08Z
Modified
2025-01-14T09:18:37.246960Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/wikimedia/mediawiki

Affected ranges

Type
GIT
Repo
https://github.com/wikimedia/mediawiki
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
e5823c068a2e0d8af72538fe5cd152ddb43c58e9

Affected versions

1.*

1.1.0
1.3.0beta1
1.35.0
1.35.0-rc.0
1.35.0-rc.1
1.35.0-rc.2
1.35.0-rc.3
1.35.1
1.35.2
1.5.0alpha1
1.5.0alpha2
1.5.0beta1
1.5.0beta2
1.5.0beta3
1.5.0beta4
1.6.0