CVE-2020-13965

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.

• CWE-79
• CWE-80

• https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-RoundcubeExploit, Third Party Advisory
• https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3Patch, Third Party Advisory
• https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5Patch
• https://github.com/roundcube/roundcubemail/releases/tag/1.3.12Release Notes
• https://github.com/roundcube/roundcubemail/releases/tag/1.4.5Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/Mailing List
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/Mailing List
• https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12Vendor Advisory
• https://www.debian.org/security/2020/dsa-4700Third Party Advisory
• https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-RoundcubeExploit, Third Party Advisory
• https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3Patch, Third Party Advisory
• https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5Patch
• https://github.com/roundcube/roundcubemail/releases/tag/1.3.12Release Notes
• https://github.com/roundcube/roundcubemail/releases/tag/1.4.5Release Notes
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/Mailing List
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/Mailing List
• https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12Vendor Advisory
• https://www.debian.org/security/2020/dsa-4700Third Party Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13965US Government Resource

Published

Jun 9, 2020

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-1396An elevation of privilege vulnerability exists when Windows …7.8
• CVE-2020-13960D-Link DSL 2730-U IN_1.10 and IN_1.11 and DIR-600M 3.04 devi…7.5
• CVE-2020-13961Strapi before 3.0.2 could allow a remote authenticated attac…6.5
• CVE-2020-13962Qt 5.12.2 through 5.14.2, as used in unofficial builds of Mu…7.5
• CVE-2020-13963SOPlanning before 1.47 has Incorrect Access Control because …9.8
• CVE-2020-13964An issue was discovered in Roundcube Webmail before 1.3.12 a…6.1
• CVE-2020-13968CRK Business Platform <= 2019.1 allows can inject SQL statem…9.8
• CVE-2020-13969CRK Business Platform <= 2019.1 allows reflected XSS via err…6.1
• CVE-2020-1397An information disclosure vulnerability exists in Windows wh…6.5
• CVE-2020-13970Shopware before 6.2.3 is vulnerable to a Server-Side Request…8.8
• CVE-2020-13971In Shopware before 6.2.3, authenticated users are allowed to…5.4
• CVE-2020-13972Enghouse Web Chat 6.2.284.34 allows XSS. When one enters the…6.1