{"id":"CVE-2026-55742","summary":"Cotonti CSRF in admin.rights.php allows privilege escalation","details":"Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to Cross-Site Request Forgery in the administration rights handler. In system/admin/admin.rights.php, the rights update action ('a=update') modifies group access rights (including via cot_auth_add_group) without calling cot_check_xg to validate the anti-CSRF token.","aliases":["GHSA-7g3p-35vc-mgjr"],"modified":"2026-08-12T03:51:46.179553053Z","published":"2026-06-18T06:05:46.915Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55742.json","cna_assigner":"TuranSec","cwe_ids":["CWE-352"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55742.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55742"},{"type":"PACKAGE","url":"https://github.com/Cotonti/Cotonti"},{"type":"ARTICLE","url":"https://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/system/admin/admin.rights.php#L53"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cotonti/cotonti","events":[{"introduced":"0d554e939a315e7f7f18fba3ca1132b80c6a1adb"},{"last_affected":"0d554e939a315e7f7f18fba3ca1132b80c6a1adb"}],"database_specific":{"extracted_events":[{"introduced":"1.0.0"},{"last_affected":"1.0.0"}],"source":"AFFECTED_FIELD"}}],"versions":["1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55742.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"}]}