CVE-2021-44857 — Missing Authorization in Mediawiki

CWE-862 — Missing AuthorizationCWE-269 — Improper Privilege Management5 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 64.61%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
MediawikiDebian Mediawiki
Timeline
PublishedDec 17
Latest updateDec 18

Description

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. It is possible to use action=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for). This applies to any public wiki, or a private wiki that has at least one page set in $wgWhitelistRead.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/mediawiki< mediawiki 1:1.35.5-1 (bookworm)
▶NVDmediawiki/mediawiki1.36.0 — 1.36.3+2
▶Debianmediawiki/mediawiki< 1:1.35.4-1+deb11u2+3

🔴Vulnerability Details

2
GHSA
GHSA-x4wg-g4fv-f8m6: An issue was discovered in MediaWiki before 1↗2021-12-18
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OSV
CVE-2021-44857: An issue was discovered in MediaWiki before 1↗2021-12-17
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📋Vendor Advisories

2
Red Hat
mediawiki: information disclosure and manipulation possible under specific conditions↗2021-12-16
▶
Debian
CVE-2021-44857: mediawiki - An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1....↗2021
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CVE-2021-44857 — Missing Authorization in Mediawiki | cvebase