CVE-2020-13965
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 July 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 76.60% probability · 100th percentile
- CISA KEV
- Listed 26 June 2024 · due 17 July 2024
- Weakness
- CWE-79, CWE-80
- Affected
- roundcube/webmail · debian/debian linux · fedoraproject/fedora
- Source
- cve@mitre.org
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12; https://nvd.nist.gov/vuln/detail/CVE-2020-13965
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.