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

Quick assessment

Affected
devcode-it openstamanager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenSTAManager是Devcode开源的一个用于技术援助和计费的开源管理软件。 OpenSTAManager 2.9.8及之前版本存在访问控制错误漏洞，该漏洞源于modules/utenti/actions.php存在权限提升和身份验证绕过，可能导致任意攻击者任意更改用户组。

CVSS 9.8 · Critical EPSS 0.67% · P50
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I. Basic Information for CVE-2026-27012

Vulnerability Information
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Vulnerability Title
Unauthenticated privilege escalation in OpenSTAManager via modules/utenti/actions.php
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
OpenSTAManager 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSTAManager是Devcode开源的一个用于技术援助和计费的开源管理软件。 OpenSTAManager 2.9.8及之前版本存在访问控制错误漏洞，该漏洞源于modules/utenti/actions.php存在权限提升和身份验证绕过，可能导致任意攻击者任意更改用户组。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
devcode-it openstamanager <= 2.9.8 -

II. Public POCs for CVE-2026-27012

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III. Intelligence Information for CVE-2026-27012

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Vendor Advisories for CVE-2026-27012 (1)

IV. Related Vulnerabilities

Same product: openstamanager
Same vendor: devcode-it
Same weakness: CWE-306

V. Comments for CVE-2026-27012

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