Permissions, Privileges, and Access Controls in MediaWiki - CVE-2014-9476
Published: January 16, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40943
CSH Severity: Medium
CVSS v4.0: 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:Green
CVE-ID: CVE-2014-9476
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: MediaWiki.org
Affected software:
MediaWiki
MediaWiki
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
MediaWiki 1.2x before 1.22.15, 1.23.x before 1.23.8, and 1.24.x before 1.24.1 allows remote attackers to bypass CORS restrictions in $wgCrossSiteAJAXdomains via a domain that has a partial match to an allowed origin, as demonstrated by "http://en.wikipedia.org.evilsite.example/."
How to mitigate CVE-2014-9476
Install update from vendor's website.
Sources
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:006
- http://www.openwall.com/lists/oss-security/2014/12/21/2
- http://www.openwall.com/lists/oss-security/2015/01/03/13
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-December/000173.html
- https://phabricator.wikimedia.org/T77028