How severe is CVE-2026-27198?

CVE-2026-27198 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-27198 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27198?

CVE-2026-27198 affects Formwork Project Formwork. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27198?

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

Does CVE-2026-27198 have an EU (EUVD) identifier?

Yes. CVE-2026-27198 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7733.

When was CVE-2026-27198 published?

CVE-2026-27198 was published on 2026-02-21 and last updated on 2026-06-17.

CVE-2026-27198

CVE-2026-27198 is a high-severity vulnerability in Formwork Project Formwork with a CVSS 3.x base score of 8.8. 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-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7733
Weakness: CWE-269
Affected product: Formwork Project Formwork
Published: 2026-02-21
Last modified: 2026-06-17

Description

Formwork is a flat file-based Content Management System (CMS). In versions 2.0.0 through 2.3.3, the application fails to properly enforce role-based authorization during account creation. Although the system validates that the specified role exists, it does not verify whether the current user has sufficient privileges to assign highly privileged roles such as admin. As a result, an authenticated user with the editor role can create a new account with administrative privileges, leading to full administrative access and complete compromise of the CMS. This issue has been fixed in version 2.3.4.

Frequently asked questions

What is CVE-2026-27198?: Formwork is a flat file-based Content Management System (CMS). In versions 2.0.0 through 2.3.3, the application fails to properly enforce role-based authorization during account creation. Although the system validates that the specified role exists, it does not verify whether the current user has sufficient privileges to assign highly privileged roles such as admin. As a result, an authenticated user with the editor role can create a new account with administrative privileges, leading to full administrative access and complete compromise of the CMS. This issue has been fixed in version 2.3.4.
How severe is CVE-2026-27198?: CVE-2026-27198 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-27198 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27198?: CVE-2026-27198 affects Formwork Project Formwork. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27198?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-27198 have an EU (EUVD) identifier?: Yes. CVE-2026-27198 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7733.
When was CVE-2026-27198 published?: CVE-2026-27198 was published on 2026-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:formwork_project:formwork:*:*:*:*:*:*:*:*

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