What is CVE-2026-52784?

CVE-2026-52784 is a high-severity vulnerability in Opf Openproject, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-06-26.

How severe is CVE-2026-52784?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Opf Openproject

CVE-2026-52784

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is a CSRF on TARGET through /users/:id via POST parameter "user[admin]". This vulnerability is fixed in 17.3.3 and 17.4.1.

Vulnerability class: CSRF (Cross-Site Request Forgery)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Opf Openproject — versions < 17.3.3, >= 17.4.0, < 17.4.1

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-52784?: CVE-2026-52784 is a high-severity vulnerability in Opf Openproject, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-06-26.
How severe is CVE-2026-52784?: High severity. CVSS v3 base score is 8.8 out of 10.