What is CVE-2026-27723?

CVE-2026-27723 is a medium-severity vulnerability in Openproject, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-03-05.

How severe is CVE-2026-27723?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Openproject

CVE-2026-27723

OpenProject is an open-source, web-based project management software. Prior to versions 17.0.5 and 17.1.2, an attacker can create wiki pages belonging to unpermitted projects through an improperly authenticated request. This issue has been patched in versions 17.0.5 and 17.1.2.

EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Openproject
Opf Openproject — versions < 17.0.5, < 17.1.2

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
security-advisories@github.com (Product, x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-27723?: CVE-2026-27723 is a medium-severity vulnerability in Openproject, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-03-05.
How severe is CVE-2026-27723?: Medium severity. CVSS v3 base score is 4.3 out of 10.