Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, in main/lp/aicc_hacp.php, user-controlled request parameters are directly used to set the PHP session ID before loading global bootstrap. This leads to session fixation. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-384"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31940.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.11.38"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "ce0192c62e48c9d9474d915c541b3274844afbf9"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "e337b7cc74a0276a0b4f91f9282204d20cac1869"
}
],
"source": "REFERENCES_COMMIT"
}
]
}