Critical severity · published Mar 16, 2026
CVE-2026-28430
Chamilo LMS Vulnerable to Unauthenticated SQL Injection in chamiko-lms model.ajax.php
9.8
CVSS
0.3%
EPSS
No
On KEV
Description
Chamilo LMS is a learning management system. Prior to version 1.11.34, there is an unauthenticated SQL injection vulnerability which allows remote attackers to execute arbitrary SQL commands via the custom_dates parameter. By chaining this with a predictable legacy password reset mechanism, an attacker can achieve full administrative account takeover without any prior credentials. The vulnerability also exposes the entire database, including PII and system configurations. This issue has been patched in version 1.11.34.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
chamilo-lms · chamilo
< 1.11.34 · source: vendor
CL
Chamilo Lms · Chamilo
before 1.11.34 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28430
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28430
Product
https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.34
Vendor Advisory
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-84gw-qjw9-v8jv
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