CVE-2026-62644
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.4epss 0.3%
exploitation probability
0.3%top 83% of all CVEs
observed exploitation
nono source reports it
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the password plugin of the Roundcube Webmail was subject to username spoofing via session data, which could lead to account takeover.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Affected products
Roundcube · WebmailReferences
https://github.com/roundcube/roundcubemail/commit/5cdc6a48b40beabff7f0bf5d9035f4491e877e4chttps://github.com/roundcube/roundcubemail/commit/7414fef51cd2407d39faab99680763f10ed5231dhttps://github.com/roundcube/roundcubemail/commit/83150ce04d689a70f92d511bcae40adba8d55476https://github.com/roundcube/roundcubemail/commit/9a96c20d8c7c9135876b68bebd6960af3ee60923https://github.com/roundcube/roundcubemail/releases/tag/1.6.17https://github.com/roundcube/roundcubemail/releases/tag/1.7.2https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2