Vulnerability Description
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 Score
6.4
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | >= 1.6.0, < 1.6.17 |
Related Weaknesses (CWE)
References
- https://github.com/roundcube/roundcubemail/commit/5cdc6a48b40beabff7f0bf5d9035f4Patch
- https://github.com/roundcube/roundcubemail/commit/7414fef51cd2407d39faab99680763Patch
- https://github.com/roundcube/roundcubemail/commit/83150ce04d689a70f92d511bcae40aPatch
- https://github.com/roundcube/roundcubemail/commit/9a96c20d8c7c9135876b68bebd6960Patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.17Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.2Release Notes
- https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2Vendor Advisory
FAQ
What is CVE-2026-62644?
CVE-2026-62644 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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.
How severe is CVE-2026-62644?
CVE-2026-62644 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-62644?
Check the references section above for vendor advisories and patch information. Affected products include: Roundcube Webmail.