Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-06-22
• EPSS: 33% chance of exploitation in the next 30 days (higher than 98% of CVEs)

[ Description ]Official description

An XSS issue was discovered in Roundcube Webmail before 1.2.13, 1.3.x before 1.3.16, and 1.4.x before 1.4.10. The attacker can send a plain text e-mail message, with JavaScript in a link reference element that is mishandled by linkref_addindex in rcube_string_replacer.php.

CISA: Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows an attacker to send a plain text e-mail message with Javascript in a link reference element that is mishandled by linkref_addinindex in rcube_string_replacer.php.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 13 Jul 2023): Apply updates per vendor instructions.

• Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• bugs.debian.org/cgi-bin/bugreport.cgiIssue TrackingMailing List
• github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10Patch
• github.com/roundcube/roundcubemail/releases/tag/1.2.13Release Notes
• github.com/roundcube/roundcubemail/releases/tag/1.3.16Release Notes
• github.com/roundcube/roundcubemail/releases/tag/1.4.10Release Notes
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Mailing ListRelease Notes
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Mailing ListRelease Notes
• roundcube.net/downloadProduct
• www.alexbirnberg.com/roundcube-xss.htmlBroken Link
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource