Vulnerability identifier: #VU54647

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-36129

CWE-ID: CWE-732

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MediaWiki
Web applications / CMS

Vendor: MediaWiki.org

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists in the Translate extension due to the Aggregategroups Action API module does not validate the parameter for aggregategroup when action=remove is set. A remote authenticated attacker can delete various groups' metadata.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MediaWiki: 1.36.0, 1.31.0 - 1.31.14, 1.35.0 - 1.35.2

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External links
http://phabricator.wikimedia.org/T282932
http://gerrit.wikimedia.org/r/q/I3619a7e88c2eb979babb7b027d4fdbfabc0af792

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.