Chamilo LMS has an IDOR in Gradebook Allows Cross-Course Evaluation Edit Without Ownership Check

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Summary

CVECVE-2026-32930
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-10 18:16:42 UTC
Updated2026-04-17 21:28:36 UTC
DescriptionChamilo 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 evaluation edit page allows any authenticated teacher to view and modify the settings (name, max score, weight) of evaluations belonging to any other course by manipulating the editeval GET parameter. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

EPSS: 0.000290000 probability, percentile 0.084300000 (date 2026-04-21)

Problem Types: CWE-639 | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Chamilo Chamilo Lms All All All All
Application Chamilo Chamilo Lms 2.0.0 alpha1 All All
Application Chamilo Chamilo Lms 2.0.0 alpha2 All All
Application Chamilo Chamilo Lms 2.0.0 alpha3 All All
Application Chamilo Chamilo Lms 2.0.0 alpha4 All All
Application Chamilo Chamilo Lms 2.0.0 alpha5 All All
Application Chamilo Chamilo Lms 2.0.0 beta1 All All
Application Chamilo Chamilo Lms 2.0.0 beta2 All All
Application Chamilo Chamilo Lms 2.0.0 beta3 All All
Application Chamilo Chamilo Lms 2.0.0 rc1 All All
Application Chamilo Chamilo Lms 2.0.0 rc2 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chamilo Chamilo-lms affected < 1.11.38 Not specified
CNA Chamilo Chamilo-lms affected >= 2.0.0-alpha.1, < 2.0.0-RC.3 Not specified

References

ReferenceSourceLinkTags
github.com/chamilo/chamilo-lms/security/advisories/GHSA-9h22-wrg7-82q6 [email protected] github.com Vendor Advisory
github.com/chamilo/chamilo-lms/commit/63e1e6d3d717bd537c7c61719416da35aa... [email protected] github.com Patch
github.com/chamilo/chamilo-lms/commit/f03f681df939db0429edc8414fb3ce4e4b... [email protected] github.com Patch
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