Description
OWASP AntiSamy before 1.6.6 allows XSS via HTML tag smuggling on STYLE content with crafted input. The output serializer does not properly encode the supposed Cascading Style Sheets (CSS) content.
Remediation
References
https://github.com/nahsra/antisamy/commit/0199e7e194dba5e7d7197703f43ebe22401e61ae
https://github.com/nahsra/antisamy/releases/tag/v1.6.6