CVE-2026-27012 Unauthenticated privilege escalation in OpenSTAManager via modules/utenti/actions.php

Critical 9.8 Published Updated

Unauthenticated attackers can escalate privileges by modifying user groups via a vulnerable action script in OpenSTAManager.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-27012?

CVE-2026-27012 is a critical vulnerability in devcode-it openstamanager, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-306

Which versions are affected by CVE-2026-27012?

2 open source packages ship an affected version, including devcode-it/openstamanager. It affects 1 product.

PackageAffectedFixed in
devcode-it/openstamanager PackagistAll versions to 2.9.8None
devcode-it/openstamanager PackagistAll versions to 2.9.8None

Products include Devcode Openstamanager.

How do I fix CVE-2026-27012?

No fix has been published for CVE-2026-27012 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-27012 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27012 exists.

Sources

Also known as GHSA-247v-7cw6-q57v.

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