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

Quick assessment

Affected
chamilo chamilo-lms
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Chamilo LMS是Chamilo开源的一套开源的在线学习和协作系统。该系统支持创建教学内容、远程培训和在线答题等。 Chamilo LMS 1.11.38之前版本和2.0.0-RC.3之前版本存在安全漏洞，该漏洞源于成绩簿结果查看页面缺少所有权或课程范围验证，可能导致不安全的直接对象引用攻击。

CVSS 7.1 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1135 · Network Share Discovery
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I. Basic Information for CVE-2026-32894

Vulnerability Information
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Vulnerability Title
Chamilo LMS has an IDOR in Gradebook Allows Cross-Course Deletion of Any Student's Grade Result
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Chamilo LMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Chamilo LMS是Chamilo开源的一套开源的在线学习和协作系统。该系统支持创建教学内容、远程培训和在线答题等。 Chamilo LMS 1.11.38之前版本和2.0.0-RC.3之前版本存在安全漏洞，该漏洞源于成绩簿结果查看页面缺少所有权或课程范围验证，可能导致不安全的直接对象引用攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
chamilo chamilo-lms < 1.11.38 -

II. Public POCs for CVE-2026-32894

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Qwen3.6-35B-A3B · 7574 chars
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III. Intelligence Information for CVE-2026-32894

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Patches & Fixes for CVE-2026-32894 (2)

Vendor Advisories for CVE-2026-32894 (1)

Same Patch Batch · chamilo · 2026-04-10 · 23 CVEs total

CVE-2026-33707 9.4 CRITICAL Weak Password Recovery Mechanism for Forgotten Password in chamilo/chamilo-lms
CVE-2026-32892 9.1 CRITICAL OS Command Injection in Chamilo LMS 1.11.36
CVE-2026-33618 8.8 HIGH Chamilo LMS Affected by Remote Code Execution via eval() in Platform Settings
CVE-2026-31939 8.3 HIGH Path Traversal (Arbitrary File Delete) in Chamilo LMS
CVE-2026-31941 7.7 HIGH Server-Side Request Forgery (SSRF) in Chamilo LMS
CVE-2026-32931 7.5 HIGH Chamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Le
CVE-2026-31940 7.5 HIGH Session Fixation in Chamilo LMS
CVE-2026-33710 7.5 HIGH Chamilo LMS has Weak REST API Key Generation (Predictable)
CVE-2026-32930 7.1 HIGH Chamilo LMS has an IDOR in Gradebook Allows Cross-Course Evaluation Edit Without Ownership
CVE-2026-33706 7.1 HIGH Chamilo LMS has a REST API Self-Privilege Escalation (Student → Teacher)
CVE-2026-33704 7.1 HIGH Chamilo LMS Affected by Authenticated Arbitrary File Write via BigUpload endpoint
CVE-2026-33702 7.1 HIGH Chamilo LMS has an Insecure Direct Object Reference (IDOR)
CVE-2026-33708 6.5 MEDIUM Chamilo LMS has REST API PII Exposure via get_user_info_from_username
CVE-2026-33141 6.5 MEDIUM Chamilo LMS has an IDOR in REST API Stats Endpoint Exposes Any User's Learning Data
CVE-2026-33736 6.5 MEDIUM Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure
CVE-2026-32893 5.4 MEDIUM Chamilo LMS has Reflected XSS via Unsanitized http_build_query() in Exercise Question List
CVE-2026-33705 5.3 MEDIUM Chamilo LMS has unauthenticated access to Twig template source files exposes application l
CVE-2026-33737 5.3 MEDIUM Chamilo LMS has an XML External Entity (XXE) Injection
CVE-2026-32932 4.7 MEDIUM Chamilo LMS has an Open Redirect via Unvalidated 'page' Parameter in Session Course Edit
CVE-2025-66447 Chamilo LMS has validation-less redirect on login page

Showing top 20 of 23 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: chamilo-lms
Same vendor: chamilo
Same weakness: CWE-476

V. Comments for CVE-2026-32894

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