Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2024-06-26
• EPSS: 77% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.

CISA: Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows a remote attacker to manipulate data via a malicious XML attachment.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 17 Jul 2024): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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

[ References ]References

• github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%…ExploitThird Party Advisory
• github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3PatchThird Party Advisory
• github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5Patch
• github.com/roundcube/roundcubemail/releases/tag/1.3.12Release Notes
• github.com/roundcube/roundcubemail/releases/tag/1.4.5Release Notes
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Mailing List
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/messag…Mailing List
• roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12Vendor Advisory
• www.debian.org/security/2020/dsa-4700Third Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource