CVE-2026-33698
CRITICALChamilo LMS affected by unauthenticated RCE in main/install folder
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/chamilo/chamilo-lms/commit/d3355d7873c7e5b907c5fa84cbd5d9b62ed33e51
X_Refsource_Confirm x_refsource_confirm
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-557g-2w66-gpmf
Scores
CVSS v3
9.8
EPSS
0.0032
EPSS Percentile
23.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-552
Status
published
Products (2)
chamilo/chamilo-lms
< 1.11.38
chamilo/chamilo_lms
< 1.11.38
Published
Apr 10, 2026
Tracked Since
Apr 11, 2026