Vulnerability Details CVE-2026-33702
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, Chamilo LMS contains an Insecure Direct Object Reference (IDOR) vulnerability in the Learning Path progress saving endpoint. The file lp_ajax_save_item.php accepts a uid (user ID) parameter directly from $_REQUEST and uses it to load and modify another user's Learning Path progress — including score, status, completion, and time — without verifying that the requesting user matches the target user ID. Any authenticated user enrolled in a course can overwrite another user's Learning Path progress by simply changing the uid parameter in the request. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.9%
CVSS Severity
CVSS v3 Score 7.1
References
- https://github.com/chamilo/chamilo-lms/commit/6331d051b4468deb5830c01d1e047c5e5cf2c74f
- https://github.com/chamilo/chamilo-lms/commit/bf3f6c6949b5c882b48a9914baa19910417e4551
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-3rv7-9fhx-j654
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-3rv7-9fhx-j654
Products affected by CVE-2026-33702
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cpe:2.3:a:chamilo:chamilo_lms:1.10.0
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cpe:2.3:a:chamilo:chamilo_lms:1.10.2
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cpe:2.3:a:chamilo:chamilo_lms:1.10.4
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cpe:2.3:a:chamilo:chamilo_lms:1.10.6
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cpe:2.3:a:chamilo:chamilo_lms:1.10.8
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cpe:2.3:a:chamilo:chamilo_lms:1.11.0
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cpe:2.3:a:chamilo:chamilo_lms:1.11.10
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cpe:2.3:a:chamilo:chamilo_lms:1.11.12
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cpe:2.3:a:chamilo:chamilo_lms:1.11.14
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cpe:2.3:a:chamilo:chamilo_lms:1.11.16
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cpe:2.3:a:chamilo:chamilo_lms:1.11.18
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cpe:2.3:a:chamilo:chamilo_lms:1.11.2
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cpe:2.3:a:chamilo:chamilo_lms:1.11.20
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cpe:2.3:a:chamilo:chamilo_lms:1.11.22
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cpe:2.3:a:chamilo:chamilo_lms:1.11.24
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cpe:2.3:a:chamilo:chamilo_lms:1.11.26
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cpe:2.3:a:chamilo:chamilo_lms:1.11.28
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cpe:2.3:a:chamilo:chamilo_lms:1.11.30
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cpe:2.3:a:chamilo:chamilo_lms:1.11.32
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cpe:2.3:a:chamilo:chamilo_lms:1.11.34
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cpe:2.3:a:chamilo:chamilo_lms:1.11.36
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cpe:2.3:a:chamilo:chamilo_lms:1.11.4
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cpe:2.3:a:chamilo:chamilo_lms:1.11.6
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cpe:2.3:a:chamilo:chamilo_lms:1.11.8
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cpe:2.3:a:chamilo:chamilo_lms:1.8.6.1
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cpe:2.3:a:chamilo:chamilo_lms:1.8.6.2
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cpe:2.3:a:chamilo:chamilo_lms:1.8.7
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cpe:2.3:a:chamilo:chamilo_lms:1.8.7.1
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cpe:2.3:a:chamilo:chamilo_lms:1.8.8
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cpe:2.3:a:chamilo:chamilo_lms:1.8.8.2
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cpe:2.3:a:chamilo:chamilo_lms:1.8.8.3
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cpe:2.3:a:chamilo:chamilo_lms:1.8.8.4
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cpe:2.3:a:chamilo:chamilo_lms:1.8.8.6
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cpe:2.3:a:chamilo:chamilo_lms:1.9.0
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cpe:2.3:a:chamilo:chamilo_lms:1.9.10
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cpe:2.3:a:chamilo:chamilo_lms:1.9.10.2
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cpe:2.3:a:chamilo:chamilo_lms:1.9.10.4
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cpe:2.3:a:chamilo:chamilo_lms:1.9.2
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cpe:2.3:a:chamilo:chamilo_lms:1.9.4
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cpe:2.3:a:chamilo:chamilo_lms:1.9.6
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cpe:2.3:a:chamilo:chamilo_lms:1.9.6.1
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cpe:2.3:a:chamilo:chamilo_lms:1.9.8
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cpe:2.3:a:chamilo:chamilo_lms:1.9.8.1
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cpe:2.3:a:chamilo:chamilo_lms:1.9.8.2
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cpe:2.3:a:chamilo:chamilo_lms:2.0.0