CVE-2026-33736 Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user including ROLESTUDENT 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...

EUVD-2026-21567

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user including ROLESTUDENT 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...

CVE-2026-33736 Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure

Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user including ROLESTUDENT 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...

CVE-2026-33710 Chamilo LMS has Weak REST API Key Generation (Predictable)

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5time + userid 5 - rand10000, 10000. The rand10000, 10000 call always returns exactly 10000 min == max, making the formula effectively md5timestamp + userid5 - 10000. An attacker who...

CVE-2026-33710 Chamilo LMS has Weak REST API Key Generation (Predictable)

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5time + userid 5 - rand10000, 10000. The rand10000, 10000 call always returns exactly 10000 min == max, making the formula effectively md5timestamp + userid5 - 10000. An attacker who...

CVE-2026-33710

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5time + userid 5 - rand10000, 10000. The rand10000, 10000 call always returns exactly 10000 min == max, making the formula effectively md5timestamp + userid5 - 10000. An attacker who...

CVE-2026-33710

Chamilo LMS (prior to 1.11.38 and 2.0.0-RC.3) uses REST API keys generated by md5(time() + (user_id * 5) - rand(10000, 10000)). Since rand(10000,10000) always returns 10000, the key becomes md5(timestamp + user_id*5 - 10000), enabling brute-forcing by an attacker who knows a username and approxim...

EUVD-2026-21565

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5time + userid 5 - rand10000, 10000. The rand10000, 10000 call always returns exactly 10000 min == max, making the formula effectively md5timestamp + userid5 - 10000. An attacker who...

CVE-2026-33710 Chamilo LMS has Weak REST API Key Generation (Predictable)

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, REST API keys are generated using md5time + userid 5 - rand10000, 10000. The rand10000, 10000 call always returns exactly 10000 min == max, making the formula effectively md5timestamp + userid5 - 10000. An attacker who...

CVE-2026-33708

Chamilo LMS is a learning management system. Prior to 1.11.38, the getuserinfofromusername REST API endpoint returns personal information email, first name, last name, user ID, active status of any user to any authenticated user, including students. There is no authorization check. This...

CVE-2026-33708 Chamilo LMS has REST API PII Exposure via get_user_info_from_username

Chamilo LMS is a learning management system. Prior to 1.11.38, the getuserinfofromusername REST API endpoint returns personal information email, first name, last name, user ID, active status of any user to any authenticated user, including students. There is no authorization check. This...

EUVD-2026-21563

Chamilo LMS is a learning management system. Prior to 1.11.38, the getuserinfofromusername REST API endpoint returns personal information email, first name, last name, user ID, active status of any user to any authenticated user, including students. There is no authorization check. This...

CVE-2026-33708

Chamilo LMS exposes PII via the get_user_info_from_username REST endpoint before version 1.11.38. Any authenticated user (including students) can retrieve another user’s email, first name, last name, user ID, and active status due to missing authorization checks. This has been fixed in 1.11.38. R...

CVE-2026-33708 Chamilo LMS has REST API PII Exposure via get_user_info_from_username

Chamilo LMS is a learning management system. Prior to 1.11.38, the getuserinfofromusername REST API endpoint returns personal information email, first name, last name, user ID, active status of any user to any authenticated user, including students. There is no authorization check. This...

CVE-2026-33707 Weak Password Recovery Mechanism for Forgotten Password in chamilo/chamilo-lms

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1$email with no random component, no expiration, and no rate limiting. An attacker who knows a user's email can compute the reset token and change the...

CVE-2026-33707 Weak Password Recovery Mechanism for Forgotten Password in chamilo/chamilo-lms

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1$email with no random component, no expiration, and no rate limiting. An attacker who knows a user's email can compute the reset token and change the...

CVE-2026-33707 Weak Password Recovery Mechanism for Forgotten Password in chamilo/chamilo-lms

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1$email with no random component, no expiration, and no rate limiting. An attacker who knows a user's email can compute the reset token and change the...

CVE-2026-33707

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, the default password reset mechanism generates tokens using sha1$email with no random component, no expiration, and no rate limiting. An attacker who knows a user's email can compute the reset token and change the...

CVE-2026-33707

Chamilo LMS (affected: prior to 1.11.38 and 2.0.0-RC.3) uses a weak password reset token by generating tokens as sha1(email) with no randomness, no expiration, and no rate limiting. An attacker who knows a user’s email can compute the reset token and change the password without authentication. Th...

CVE-2026-33706 Chamilo LMS has a REST API Self-Privilege Escalation (Student → Teacher)

Chamilo LMS is a learning management system. Prior to 1.11.38, any authenticated user with a REST API key can modify their own status field via the updateuserfromusername endpoint. A student status=5 can change their status to Teacher/CourseManager status=1, gaining course creation and management...