Vulnerability · Published Apr 10, 2026 · Assigned by GitHub_M

CVE-2026-32894Chamilo LMS has an IDOR in Gradebook Allows Cross-Course Deletion of Any Student's Grade Result

High 7.1

In plain English

A high-severity null pointer dereference in chamilo-lms from chamilo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 79.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
chamilo	chamilo-lms	< 1.11.38>= 2.0.0-alpha.1, < 2.0.0-RC.3

Weakness: CWE-476, CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

References

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-rqpg-p95v-fv98 x_refsource_CONFIRM
https://github.com/chamilo/chamilo-lms/commit/3b03306d1a0301a81b9284e86893b27f518ab151 x_refsource_MISC
https://github.com/chamilo/chamilo-lms/commit/740f5a6e192a52a3adde3c3241c86401b1d2c519 x_refsource_MISC