CVE-2026-33736 | Chamilo LMS up to 2.0.0-RC.2 Personal Information /api/users authorization (GHSA-fp2p-fj6c-x3x9)

VDB-356931 · CVE-2026-33736 · GHSA-FP2P-FJ6C-X3X9 CHAMILO LMS UP TO 2.0.0-RC.2 PERSONAL INFORMATION /API/USERS AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 1.49+ Summaryinfo A vulnerability, which was classified as problematic, has been found in Chamilo LMS up to 2.0.0-RC.2. This vulnerability affects unknown code of the file /api/users of the component Personal Information Handler. Performing a manipulation results in authorization. This vulnerability is identified as CVE-2026-33736. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability classified as problematic has been found in Chamilo LMS up to 2.0.0-RC.2. This affects an unknown functionality of the file /api/users of the component Personal Information Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on confidentiality. The summary by CVE is: Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user (including ROLE_STUDENT) can enumerate all platform users and access personal information (email, phone, roles) via GET /api/users, including administrator accounts. This vulnerability is fixed in 2.0.0-RC.3. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-33736 since 03/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. Upgrading to version 2.0.0-RC.3 eliminates this vulnerability. Applying the patch 1739371ce1c562c007c7f5d53e6d65b7a4ff4109 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Content Management System Vendor Chamilo Name LMS Version 2.0.0-RC.0 2.0.0-RC.1 2.0.0-RC.2 License open-source CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.4 VulDB Meta Temp Score: 5.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.5 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-639 / CWE-285 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: LMS 2.0.0-RC.3 Patch: 1739371ce1c562c007c7f5d53e6d65b7a4ff4109 Timelineinfo 03/23/2026 CVE reserved 04/10/2026 +17 days Advisory disclosed 04/10/2026 +0 days VulDB entry created 04/10/2026 +0 days VulDB entry last update Sourcesinfo Advisory: GHSA-fp2p-fj6c-x3x9 Status: Confirmed CVE: CVE-2026-33736 (🔒) GCVE (CVE): GCVE-0-2026-33736 GCVE (VulDB): GCVE-100-356931 Entryinfo Created: 04/10/2026 22:30 Changes: 04/10/2026 22:30 (68) Complete: 🔍 Cache ID: 99:801:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸