CVE-2011-1579
The checkCss function in includes/Sanitizer.php in the wikitext parser in MediaWiki before 1.16.3 does not properly validate Cascading Style Sheets (CSS) token sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks or…
Does this matter?
Lower severity and a low EPSS score (1.92%). Track it; it rarely justifies an emergency change on its own.
Description
The checkCss function in includes/Sanitizer.php in the wikitext parser in MediaWiki before 1.16.3 does not properly validate Cascading Style Sheets (CSS) token sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks or obtain sensitive information by using the \2f\2a and \2a\2f hex strings to surround CSS comments.
- CVSS 2.0
- 5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
- EPSS
- 1.92% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mediawiki/mediawiki
- Source
- secalert@redhat.com
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058588.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058910.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059232.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059235.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000096.htmlVendor Advisory
- http://openwall.com/lists/oss-security/2011/04/13/15
- http://secunia.com/advisories/44142Vendor Advisory
- http://www.debian.org/security/2011/dsa-2366
- http://www.mediawiki.org/wiki/Special:Code/MediaWiki/85856Exploit, Patch
- http://www.securityfocus.com/bid/47354
- http://www.vupen.com/english/advisories/2011/0978Patch, Vendor Advisory
- http://www.vupen.com/english/advisories/2011/1100
- http://www.vupen.com/english/advisories/2011/1151
- https://bugzilla.redhat.com/show_bug.cgi?id=695577
- https://bugzilla.redhat.com/show_bug.cgi?id=696360
- https://bugzilla.wikimedia.org/show_bug.cgi?id=28450
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66738
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058588.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058910.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059232.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/059235.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-April/000096.htmlVendor Advisory
- http://openwall.com/lists/oss-security/2011/04/13/15
- http://secunia.com/advisories/44142Vendor Advisory
- http://www.debian.org/security/2011/dsa-2366
- http://www.mediawiki.org/wiki/Special:Code/MediaWiki/85856Exploit, Patch
- http://www.securityfocus.com/bid/47354
- http://www.vupen.com/english/advisories/2011/0978Patch, Vendor Advisory
- http://www.vupen.com/english/advisories/2011/1100
- http://www.vupen.com/english/advisories/2011/1151
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.