CVE-2020-35730
Roundcube Roundcube Webmail
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
What it is
Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows an attacker to send a plain text e-mail message with Javascript in a link reference element that is mishandled by linkref_addinindex in rcube_string_replacer.php.
What to do
Apply updates per vendor instructions.
Vendor notices and references
- roundcube.net/news/2020/12/27/security-updates-1.4.10-1.3.16-and-1.2.13
- nvd.nist.gov/vuln/detail/CVE-2020-35730
Description and required action as published by CISA. Full record at NVD.
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- 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
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