CVE-2021-41118

ReDoS in DynamicPageList3

Description

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.37%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: Universal-Omega DynamicPageList3
Published at:
Updated at:

References

Link Tags
https://github.com/Universal-Omega/DynamicPageList3/security/advisories/GHSA-8f24-q75c-jhf4 third party advisory mitigation
https://github.com/Universal-Omega/DynamicPageList3/commit/2c04dafb37a14d9ccfe070f53e7f11bbca0156e7 third party advisory patch
https://github.com/Universal-Omega/DynamicPageList3/releases/tag/3.3.6 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2021-41118?
CVE-2021-41118 has been scored as a medium severity vulnerability.
How to fix CVE-2021-41118?
To fix CVE-2021-41118, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41118 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-41118 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41118?
CVE-2021-41118 affects Universal-Omega DynamicPageList3.
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