An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password.
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
https://github.com/roundcube/roundcubemail/commit/6fa2bddc59b9c9fd31cad4a9e2954a208d793dce
https://github.com/roundcube/roundcubemail/commit/6a275676a8043083c05c961914d830b79e2490d4
https://github.com/roundcube/roundcubemail/commit/2e6a99b2a38110907ea8d3be8e59ec3d5802c394