#VU89216 Information disclosure in MediaWiki - CVE-2024-29883

Vulnerability identifier: #VU89216

Vulnerability risk: Low

CVSSv4.0: [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-29883

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MediaWiki
Web applications / CMS

Vendor: MediaWiki.org

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists in the CreateWiki extension due to the Special:ManageWiki does not escape escape interface messages. A remote administrator can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MediaWiki: 1.39.0 rc.0 - 1.39.6, 1.40.0 rc.0 - 1.41.0

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External links
http://github.com/miraheze/CreateWiki/security/advisories/GHSA-8wjf-mxjg-j8p9
http://gist.githubusercontent.com/redbluegreenhat/0da1ebb7185b241ce1ac6ba1e8f0b98d/raw/44c4a229aacc8233808c767a79af9e4fd581ae68/T11993.patch
http://issue-tracker.miraheze.org/T11993
http://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/ISK76VXYSIOKYLLU2DTQUXIJV6MMWGOJ/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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