CVE-2026-40291

{"id": "CVE-2026-40291", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2026-04-14T22:16:32.507", "references": [{"url": "https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.0-RC.3", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-7phx-w897-4c9x", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-269"}, {"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct object modification vulnerability in the PUT /api/users/{id} endpoint allows any authenticated user with ROLE_STUDENT to escalate their privileges to ROLE_ADMIN by modifying the roles field on their own user record. The API Platform security expression is_granted('EDIT', object) only verifies record ownership, and the roles field is included in the writable serialization group, enabling any user to set arbitrary roles such as ROLE_ADMIN. Successful exploitation grants full administrative control of the platform, including access to all courses, user data, grades, and administrative settings. This issue has been fixed in version 2.0.0-RC.3."}], "lastModified": "2026-04-22T18:37:25.983", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "34085140-9203-4B20-9036-743718F1A4F8", "versionEndIncluding": "1.11.38"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AF7661F-C1F7-4CAB-BBDF-FC5BF7F5BEB8"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE56AF71-9D53-42C6-980D-09E1C418ED87"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "01195674-9E1A-4C07-B7D3-0F0CC2E6511B"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BAE63449-5A56-4302-A4BF-F3D19FC96A80"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:alpha5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A84A06F9-5AB7-4703-8153-33AC68882B95"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B91302A3-53DE-4ED0-BAAB-FE9DA03F8242"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46008D4A-96F7-4E04-8256-E115AAAE3383"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:beta3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6E2BCAFF-D44B-4E67-998A-DF855E27606B"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D2E7D018-E4C2-45F5-8D9A-DAC947173607"}, {"criteria": "cpe:2.3:a:chamilo:chamilo_lms:2.0.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DAF96697-6B6D-459D-9510-E5CEEDC2859B"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}