Cyber Resilience

CVE-2021-44854

Medium

Published: 26 December 2022

Published
26 December 2022
Modified
14 April 2025
KEV Added
Patch
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0022 44.3th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-44854 is a medium-severity Use of Cache Containing Sensitive Information (CWE-524) vulnerability in Mediawiki Mediawiki. Its CVSS base score is 5.3 (Medium).

Operationally, ranked at the 44.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. The REST API publicly caches results from private wikis.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mediawiki
mediawiki
1.37.0 · ≤ 1.35.5 · 1.36.0 — 1.36.3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-524

Refreshing cached data or generating it ephemerally and deleting afterward directly mitigates storage of sensitive information in caches.

References