Auth bypass in Primakon Project Contract Management

CVE-2025-64063

Primakon Pi Portal 1.0.18 API endpoints fail to enforce sufficient authorization checks when processing requests. Specifically, a standard user can exploit this flaw by sending direct HTTP requests to administrative endpoints, bypassing the UI restrictions. This allows the attacker to manipulate data outside their assigned scope, including: Unauthorized Account modification, modifying/deleting arbitrary user accounts and changing passwords by sending a direct request to the user management API endpoint; Confidential Data Access, accessing and downloading sensitive organizational documents via a direct request to the document retrieval API; Privilege escalation, This vulnerability can lead to complete compromise of data integrity and confidentiality, and Privilege Escalation by manipulating core system functions.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-64063: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-64063?
CVE-2025-64063 is a critical-severity vulnerability in Primakon Project Contract Management, classified under Improper Authorization. CVSS score: 9.8/10. Published 2025-11-25.
How severe is CVE-2025-64063?
Critical severity. CVSS v3 base score is 9.8 out of 10.