Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1($email) with no random component, no expiration, and no rate limiting. An attacker who knows a user's email can compute the reset token and change the victim's password without authentication. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:HI:HA:L9.4/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:LOther