CVE-2026-31940
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
8.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-10 18:16:41.483000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
"id": "CVE-2026-31940",
"sourceIdentifier": "[email protected]",
"published": "2026-04-10T18:16:41.483",
"lastModified": "2026-10-26T22:10:00.163",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Chamilo LMS es un sistema de gestión del aprendizaje. Antes de 1.11.38 y 2.0.0-RC.3, en main/lp/aicc_hacp.php, los parámetros de solicitud controlados por el usuario se utilizan directamente para establecer el ID de la sesión de PHP antes de cargar el bootstrap global. Esto conduce a fijación de sesión. Esta vulnerabilidad está corregida en 1.11.38 y 2.0.0-RC.3."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "chamilo",
"product": "chamilo-lms",
"versions": [
{
"version": "< 1.11.38",
"status": "affected"
},
{
"version": ">= 2.0.0-alpha.1, < 2.0.0-RC.3",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.6,
"impactScore": 5.9
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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"scope": "UNCHANGED",
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"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
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}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-04-14T14:12:20.377261Z",
"id": "CVE-2026-31940",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-384"
}
]
}
],
"configurations": [
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"nodes": [
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],
"references": [
{
"url": "https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9",
"source": "[email protected]",
"tags": [
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},
{
"url": "https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869",
"source": "[email protected]",
"tags": [
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},
{
"url": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}