CVE-2021-41118

ReDoS in DynamicPageList3

CVSS 5.3 MEDIUMEPSS 1.1%CWE-400

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 1.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

04 Oct 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The DynamicPageList3 extension is a reporting tool for MediaWiki, listing category members and intersections with various formats and details. In affected versions unsanitised input of regular expression date within the parameters of the DPL parser function, allowed for the possibility of ReDoS (Regex Denial of Service). This has been resolved in version 3.3.6. If you are unable to update you may also set `$wgDplSettings['functionalRichness'] = 0;` or disable DynamicPageList3 to mitigate.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

Universal-Omega · DynamicPageList3

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References

https://github.com/Universal-Omega/DynamicPageList3/commit/2c04dafb37a14d9ccfe070f53e7f11bbca0156e7 https://github.com/Universal-Omega/DynamicPageList3/releases/tag/3.3.6 https://github.com/Universal-Omega/DynamicPageList3/security/advisories/GHSA-8f24-q75c-jhf4