Auth bypass in Quyle91 Administrator Z
CVE-2025-2815
The Administrator Z plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the adminz_import_backup() function in all versions up to, and including, 2025.03.24. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site. CVE-2025-26959 is a duplicate of this issue.
Vulnerability class: Broken Access Control
EPSS: 0.003 (26.0th percentile) — read the EPSS interpretation.
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
- Quyle91 Administrator Z — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-2815?
- CVE-2025-2815 is a high-severity vulnerability in Quyle91 Administrator Z, classified under Missing Authorization. CVSS score: 8.8/10. Published 2025-03-28.
- How severe is CVE-2025-2815?
- High severity. CVSS v3 base score is 8.8 out of 10.