Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an Insecure Direct Object Reference (IDOR) vulnerability in the gradebook result view page allows any authenticated teacher to delete any student's grade result across the entire platform by manipulating the delete_mark or resultdelete GET parameters. No ownership or course-scope verification is performed. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-rqpg-p95v-fv98
https://github.com/chamilo/chamilo-lms/commit/740f5a6e192a52a3adde3c3241c86401b1d2c519
https://github.com/chamilo/chamilo-lms/commit/3b03306d1a0301a81b9284e86893b27f518ab151