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Public proof of concept

CVE-2026-27012

A public proof of concept exists; no exploitation attested.

  • Published2026-03-03
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-03-0322:16CVE publishedNVD

Versions per branch

OSV · NVD
devcode-it/openstamanager
BranchAffectedFixed in
2.9≤ 2.9.8no fix published
Devcode openstamanager
BranchAffectedFixed in
2.9≤ 2.9.8no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • devcode-it openstamanager
    Affected
    • = <= 2.9.8no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-03-03

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-03-04
  • CNACVSS 3.19.8known since 2026-10-23
  • CNAweakness (CWE)CWE-306known since 2026-10-23
  • FIRST EPSSEPSS score0.6 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2026-03-03

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-03-03
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-247v-7cw6-q57v

Frequently asked questions

What is CVE-2026-27012?

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.

Is CVE-2026-27012 actively exploited?

A proof-of-concept exploit exists for CVE-2026-27012, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-27012?

CVE-2026-27012 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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