CVE-2021-42040
7.5
HIGH
CVSS 3.1
EPSS 0.33%
Description
An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.
How to fix CVE-2021-42040
To remediate CVE-2021-42040, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.36.3 or later
Is CVE-2021-42040 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.36.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |