Session Fixation in Chamilo LMS_CVE-2026-31940

7.5 / 10

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Basic Information

ID CVE-2026-31940

Source GitHub_M

Published Apr 10, 2026 at 17:35

Affected Product

Vendor chamilo

Product chamilo-lms

Version < 1.11.38

Affected Versions chamilo chamilo-lms < 1.11.38
chamilo chamilo-lms >= 2.0.0-alpha.1, < 2.0.0-RC.3

CWE Classification

CWE-384

References

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    "lastseen": "",
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    "published": "2026-04-10T17:35:10.661Z",
    "modified": "2026-04-10T17:35:10.661Z",
    "type": "cve",
    "title": "Session Fixation in Chamilo LMS",
    "source": "GitHub_M",
    "references": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv\nhttps://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9\nhttps://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869",
    "id": "CVE-2026-31940",
    "bulletinFamily": "",
    "cwe": [
        "CWE-384"
    ],
    "cvelist": null,
    "sourceData": "chamilo chamilo-lms < 1.11.38\nchamilo chamilo-lms >= 2.0.0-alpha.1, < 2.0.0-RC.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "chamilo-lms",
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    "ai_description": "",
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}