Description
The Microsoft Anti-Cross Site Scripting (AntiXSS) Library 3.x and 4.0 does not properly evaluate characters after the detection of a Cascading Style Sheets (CSS) escaped character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML input, aka "AntiXSS Library Bypass Vulnerability."
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Adi Cohen · textremotewindows
https://www.exploit-db.com/exploits/36507
References (7)
Core 7
Core References
Vendor Advisory vendor-advisory
x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-007
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/51291
US Government Resource third-party-advisory
x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA12-010A.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id?1026499
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14314
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/47483
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/47516
Scores
EPSS
0.5966
EPSS Percentile
98.3%
Details
CWE
CWE-79
Status
published
Products (2)
microsoft/anti-cross_site_scripting_library
3.1
microsoft/anti-cross_site_scripting_library
4.0
Published
Jan 10, 2012
Tracked Since
Feb 18, 2026