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VulnerabilityPublished

CVE-2026-27012: devcode-it openstamanager · Missing Authentication

Affects devcode-it openstamanagerSource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Contested

Critical score, yet low EPSS after six months
EPSS
0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
devcode-itopenstamanagerAffected
  • <=2.9.8
Fixed in–
GitHubdevcode-it/openstamanagerpkg:github/devcode-it/openstamanagerOther threatsAffected
  • <=2.9.8
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2026-27012, organizations should immediately upgrade OpenSTAManager to a version beyond 2.9.8 once an official patch is released. Until then, implement strict network-level access controls to restrict access to the modules/utenti/actions.php endpoint, such as IP whitelisting or VPN-only access. Employ web application firewalls (WAFs) with custom rules to detect and block unauthorized requests attempting to modify user groups. Conduct thorough audits of user group memberships to identify unauthorized privilege escalations and restore legitimate configurations. Enforce strong authentication and authorization mechanisms at the application level, including multi-factor authentication for administrative accounts. Monitor logs for suspicious activity related to user group changes. If possible, isolate the OpenSTAManager instance from public networks or limit its exposure. Additionally, consider deploying intrusion detection systems (IDS) to alert on anomalous access patterns targeting this vulnerability. Finally, educate administrators and users about the risk and ensure incident response plans include steps for this specific threat.

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.

References

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