{"id":"CVE-2026-27012","aliases":["GHSA-247v-7cw6-q57v"],"url":"https://o3.security/vulnerability/CVE-2026-27012","summary":"Unauthenticated privilege escalation in OpenSTAManager via modules/utenti/actions.php","details":"OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a privilege escalation and authentication bypass vulnerability in OpenSTAManager allows any attacker to arbitrarily change a user's group (idgruppo) by directly calling modules/utenti/actions.php. This can promote an existing account (e.g. agent) into the Amministratori group as well as demote any user including existing administrators.","published":"2026-03-03T21:53:01.002Z","modified":"2026-08-12T03:51:16.605804869Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00537,"percentile":0.4284,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"devcode-it/openstamanager","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27012.json"},{"type":"ADVISORY","url":"https://github.com/devcode-it/openstamanager/security/advisories/GHSA-247v-7cw6-q57v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27012"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.605804869Z"}}