CVE-2026-34160

Published: Apr 14, 2026 Last Modified: Apr 14, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,6
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: none
Availability: none

Description

AI Translation Available

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the PENS (Package Exchange Notification Services) plugin endpoint at public/plugin/Pens/pens.php is accessible without authentication and accepts a user-controlled package-url parameter that the server fetches using curl without filtering private or internal IP addresses, enabling unauthenticated Server-Side Request Forgery (SSRF). An attacker can exploit this to probe internal network services, access cloud metadata endpoints (such as 169.254.169.254) to steal IAM credentials and sensitive instance metadata, or trigger state-changing operations on internal services via the receipt and alerts callback parameters. No authentication is required to exploit either SSRF vector, significantly increasing the attack surface. This issue has been fixed in version 2.0.0-RC.3.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,2th
Updated

EPSS Score Trend (Last 2 Days)

306

Missing Authentication for Critical Function

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Other
Potential Impacts:
Gain Privileges Or Assume Identity Varies By Context
Applicable Platforms
Technologies: Cloud Computing, ICS/OT
Likelihood of Exploit: High
View CWE Details
918

Server-Side Request Forgery (SSRF)

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control
Potential Impacts:
Read Application Data Execute Unauthorized Code Or Commands Bypass Protection Mechanism
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
View CWE Details
https://github.com/chamilo/chamilo-lms/commit/de4058d76fac2…
https://github.com/chamilo/chamilo-lms/commit/de4058d76fac2413afd023b1ec942e8e7…
https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-…
https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3
https://github.com/chamilo/chamilo-lms/security/advisories/…
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-g2xj-4cch-j276