CVE-2026-27012 | OpenSTAManager is an open source management software for tec… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-27012
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-02-17 03:08 UTC
Published: 2026-03-03 21:53 UTC
Last updated: 2026-03-04 21:21 UTC
Primary CWE: CWE-306
CWE-306: Missing Authentication for Critical Function
Vendor / Product: devcode-it / openstamanager
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
devcode-it	openstamanager	—	<= 2.9.8

Weakness (CWE)

CWE	Source	Description
CWE-306	cna	CWE-306: Missing Authentication for Critical Function

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (1)

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