SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-41799

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time).

HIGH 7.5EPSS 1.70%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). ApiQueryBacklinks (action=query&list=backlinks) can cause a full table scan.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.70% probability · 76th percentile
CISA KEV
Not listed
Weakness
CWE-770
Affected
mediawiki/mediawiki · fedoraproject/fedora
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.