Description
Cross-site scripting (XSS) vulnerability in SqWebMail 5.0.4 allows remote attackers to inject arbitrary web script or HTML via an e-mail message containing Internet Explorer "Conditional Comments" such as "[if]" and "[endif]".
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗Advisories 1
- DSA-820-1 courier - missing input sanitising Debian Security (DSA / DLA) · Mar 9, 2026
References
- 16704 third-party-advisory
- sqwebmail-html-comment-xss(22158) vdb-entry
- 20050906 Secunia Research: SqWebMail Conditional Comments Script Insertion mailing-list
- 17156 third-party-advisory
- USN-201-1 vendor-advisory
- http://secunia.com/secunia_research/2005-44/advisory/
- DSA-820 vendor-advisory
- http://www.securiteam.com/unixfocus/5RP0220GUS.html