Roundcube Webmail
YES - ON THE CISA KEV LIST
CVE-2024-42009
RoundCube Webmail Cross-Site Scripting Vulnerability
overdue since 2025-06-30
Roundcube: 11 entries (0.6% of all KEV entries are from this vendor); 2 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
RoundCube Webmail contains a cross-site scripting vulnerability. This vulnerability could allow a remote attacker to steal and send emails of a victim via a crafted e-mail message that abuses a Desanitization issue in message_body() in program/actions/mail/show.php.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8 ; https://nvd.nist.gov/vuln/detail/CVE-2024-42009
References
Other KEV entries for this vendor: Roundcube
- CVE-2025-49113 - Webmail (2026-02-20)
- CVE-2025-68461 - Webmail (2026-02-20)
- CVE-2024-37383 - Webmail (2024-10-24)
- CVE-2020-13965 - Webmail (2024-06-26)
- CVE-2023-43770 - Webmail (2024-02-12)
- CVE-2023-5631 - Webmail (2023-10-26)
- CVE-2020-35730 - Roundcube Webmail (2023-06-22)
- CVE-2020-12641 - Roundcube Webmail (2023-06-22)
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