by Kastro
Paper/Archive/CVE-2026-27012

CVE-2026-27012

devcode-it openstamanager — Unauthenticated privilege escalation in OpenSTAManager via modules/utenti/actions.php

EPSS 0.6%public exploitCVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 48.6.486 × 209.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
openstamanager<= 2.9.8–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refgithub.com/devcode-it/openstamanager/security/advisories/GHSA-247v-7cw6-q57v