CVE-2023-5631
Roundcube Webmail
Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
What it is
Roundcube Webmail contains a persistent cross-site scripting (XSS) vulnerability that allows a remote attacker to run malicious JavaScript code.
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/2023/10/16/security-update-1.6.4-released, https://roundcube.net/news/2
- nvd.nist.gov/vuln/detail/CVE-2023-5631
Description and required action as published by CISA. Full record at NVD.
Other Roundcube entries on the list
- Webmail RoundCube Webmail Cross-site Scripting Vulnerability CVE-2025-68461 · Feb 20, 2026
- 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 Cross-Site Scripting (XSS) Vulnerability CVE-2020-13965 · Jun 26, 2024
- Webmail Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability CVE-2023-43770 · Feb 12, 2024