How severe is CVE-2026-27012?

CVE-2026-27012 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-27012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27012?

CVE-2026-27012 affects Devcode Openstamanager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27012?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-27012 have an EU (EUVD) identifier?

Yes. CVE-2026-27012 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9334.

When was CVE-2026-27012 published?

CVE-2026-27012 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-27012

CVE-2026-27012 is a critical-severity vulnerability in Devcode Openstamanager with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9334
Weakness: CWE-306
Affected product: Devcode Openstamanager
Published: 2026-03-03
Last modified: 2026-06-17

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.

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.
How severe is CVE-2026-27012?: CVE-2026-27012 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-27012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27012?: CVE-2026-27012 affects Devcode Openstamanager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27012?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-27012 have an EU (EUVD) identifier?: Yes. CVE-2026-27012 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9334.
When was CVE-2026-27012 published?: CVE-2026-27012 was published on 2026-03-03 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:devcode:openstamanager:*:*:*:*:*:*:*:*

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