CVE-2020-13965

Known Exploited (CISA KEV)MEDIUM

6.1

CVSS Severity Score

EPSS Score33.0050%

EPSS Percentile97.85th

PublishedJun 9, 2020

Last ModifiedNov 4, 2025

Vulnerability 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.

Affected Platforms (CPE)

📦

Roundcube

Webmail

< 1.3.12

📦

Roundcube

Webmail

>= 1.4.0 and < 1.4.5

💻

Debian

Debian Linux

= 9.0

💻

Debian

Debian Linux

= 10.0

💻

Fedoraproject

Fedora

= 31

💻

Fedoraproject

Fedora

= 32

References & Advisories

🔗 https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube

🔗 https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3

🔗 https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5

🔗 https://github.com/roundcube/roundcubemail/releases/tag/1.3.12

🔗 https://github.com/roundcube/roundcubemail/releases/tag/1.4.5

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/

🔗 https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12

Vulnerability Description

Affected Platforms (CPE)

Webmail

Webmail

Debian Linux

Debian Linux

Fedora

Fedora

References & Advisories

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