---
cve: "CVE-2026-27012"
severity: "CRITICAL"
cvss: 9.8
epss: "54%"
vendor: "devcode-it"
kev: false
exploited: false
published: "2026-03-03 22:16:28"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T08:39:45+02:00"
---

# CVE-2026-27012

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://github.com/devcode-it/openstamanager/security/advisories/GHSA-247v-7cw6-q57v>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-27012) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_