#VU40836 Cross-site scripting in MediaWiki - CVE-2015-2932

Vulnerability identifier: #VU40836

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-2932

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MediaWiki
Web applications / CMS

Vendor: MediaWiki.org

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

Incomplete blacklist vulnerability in MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2 allows remote attackers to inject arbitrary web script or HTML via an animated href XLink element.

Mitigation
Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.20 - 1.24.1

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External links
https://www.mandriva.com/security/advisories?name=MDVSA-2015:200
https://www.openwall.com/lists/oss-security/2015/04/01/1
https://www.openwall.com/lists/oss-security/2015/04/07/3
https://www.securityfocus.com/bid/73477
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html
https://phabricator.wikimedia.org/T86711
https://security.gentoo.org/glsa/201510-05

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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