SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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…

MEDIUM 5.8EPSS 1.92%

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.