CVE-2026-33698CWE-552

Chamilo LMS affected by unauthenticated RCE in main/install folder

Critical · published April 10, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
46.8
In the wild
Unconfirmed
What it is

Chamilo LMS is a learning management system. Prior to 1.11.38, a chained attack can enable otherwise-blocked PHP code from the main/install/ directory and allow an unauthenticated attacker to modify existing files or create new files where allowed by system permissions. This only affects portals with the main/install/ directory still present and read-accessible. This vulnerability is fixed in 1.11.38.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00578 · 46.8th percentile
Weakness
CWE-552 · Files or Directories Accessible to External Parties
Published
2026-04-10T18:14Z
EPSS history
Timeline
  • 10 APR 18:14Z
    Chamilo LMS affected by unauthenticated RCE in main/install folder
    cvelistv5