What is the CVSS score of EUVD-2026-21527?

EUVD-2026-21527 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L. EPSS exploitation probability: 0.0%.

Which versions of Chamilo LMS are affected by EUVD-2026-21527?

Chamilo LMS versions prior to 1.11.38 and 2.0.0-RC.3 contain an authentication bypass vulnerability allowing authenticated teachers to permanently delete student grades across any course through…. A patch is available.

How to fix or mitigate EUVD-2026-21527?

Within 24 hours: Identify all Chamilo LMS instances and document current versions in use. Within 7 days: upgrade to Chamilo LMS 1.11.38 or 2.0.0-RC.3 or later, and review access logs for suspicious gradebook delete operations (filter for delete_mark or resultdelete parameters). Within 30 days: audit all grade modifications from the past 90 days, restore any unauthorized deletions from backups, and implement role-based access controls limiting teacher grade deletion rights to their own courses only.

Chamilo LMS EUVD-2026-21527

| CVE-2026-32894 HIGH

NULL Pointer Dereference (CWE-476)

2026-04-10 GitHub_M

Denial Of Service Null Pointer Dereference

7.1

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

Low

Lifecycle Timeline

Re-analysis Queued

Apr 17, 2026 - 21:37 vuln.today

cvss_changed

Analysis Updated

Apr 16, 2026 - 05:58 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

1.11.38,2.0.0-RC.3

EUVD ID Assigned

Apr 10, 2026 - 18:00 euvd

EUVD-2026-21527

Analysis Generated

Apr 10, 2026 - 18:00 vuln.today

CVE Published

Apr 10, 2026 - 17:44 nvd

HIGH 7.1

DescriptionNVD

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.

AnalysisAI

Authenticated teachers in Chamilo LMS can delete arbitrary student grades platform-wide through Insecure Direct Object Reference in gradebook result views. By manipulating delete_mark or resultdelete GET parameters, attackers bypass course-scope and ownership controls, enabling unauthorized grade deletion across all courses. …

RemediationAI

Within 24 hours: Identify all Chamilo LMS instances and document current versions in use. Within 7 days: upgrade to Chamilo LMS 1.11.38 or 2.0.0-RC.3 or later, and review access logs for suspicious gradebook delete operations (filter for delete_mark or resultdelete parameters). …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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EUVD-2026-21527 vulnerability details – vuln.today

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