{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31940",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-03-10T15:10:10.655Z",
        "datePublished": "2026-04-10T17:35:10.661Z",
        "dateUpdated": "2026-04-14T14:12:28.550Z"
    },
    "containers": {
        "cna": {
            "title": "Session Fixation in Chamilo LMS",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-384",
                            "lang": "en",
                            "description": "CWE-384: Session Fixation",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-4gp7-cfjh-77gv"
                },
                {
                    "name": "https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/chamilo/chamilo-lms/commit/ce0192c62e48c9d9474d915c541b3274844afbf9"
                },
                {
                    "name": "https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/chamilo/chamilo-lms/commit/e337b7cc74a0276a0b4f91f9282204d20cac1869"
                }
            ],
            "affected": [
                {
                    "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"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-04-10T17:35:10.661Z"
            },
            "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."
                }
            ],
            "source": {
                "advisory": "GHSA-4gp7-cfjh-77gv",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-14T14:12:20.377261Z",
                                "id": "CVE-2026-31940",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-14T14:12:28.550Z"
                }
            }
        ]
    }
}