CVE-2020-13965
Roundcube Webmail
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
What it is
Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows a remote attacker to manipulate data via a malicious XML attachment.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vendor notices and references
- roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12
- nvd.nist.gov/vuln/detail/CVE-2020-13965
Description and required action as published by CISA. Full record at NVD.
Other Roundcube entries on the list
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- Webmail RoundCube Webmail Deserialization of Untrusted Data Vulnerability CVE-2025-49113 · Feb 20, 2026
- Webmail RoundCube Webmail Cross-Site Scripting Vulnerability CVE-2024-42009 · Jun 9, 2025
- Webmail RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability CVE-2024-37383 · Oct 24, 2024
- Webmail Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability CVE-2023-43770 · Feb 12, 2024
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