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TI-2021-17957 Aliases CVE-2021-41118

ReDoS in DynamicPageList3

Priority LOW 35CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

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.

Why it matters now

EPSS 0.01158 67th percentileScored 2026-11-07
Fix Fixed DynamicPageList3 (Universal-Omega): 3.3.6

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Universal-OmegaDynamicPageList3before 3.3.63.3.6Patch availableCNA
  • DynamicPageList3 VendorUniversal-Omega Affected before 3.3.6 Fixed in 3.3.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dynamicpagelist3_project:dynamicpagelist3:*:*:*:*:*:mediawiki:*:*before 3.3.6VulnerableDynamicpagelist3 Project
  • cpe:2.3:a:dynamicpagelist3_project:dynamicpagelist3:*:*:*:*:*:mediawiki:*:* Versions before 3.3.6 Vulnerable ·Dynamicpagelist3 Project

Remediation

  • Fix · CNA DynamicPageList3 (Universal-Omega) Fixed in 3.3.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41118

References

  • TI-2025-33552 DynamicPageList3 exposes hidden/suppressed usernames CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences