CVE-2025-15100
Published: 08 February 2026
Summary
CVE-2025-15100 is a high-severity Improper Privilege Management (CWE-269) vulnerability in Wordpress (inferred from references). Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 22.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and AC-6 (Least Privilege).
Deeper analysis
CVE-2025-15100 is a privilege escalation vulnerability in the JAY Login & Register plugin for WordPress, affecting all versions up to and including 2.6.03. The flaw arises from the 'jay_panel_ajax_update_profile' function, which permits updating arbitrary user meta. Published on 2026-02-08, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) and maps to CWE-269 (Improper Privilege Management).
Authenticated attackers with Subscriber-level access or higher can exploit this vulnerability remotely with low complexity and no user interaction required. Exploitation allows them to escalate their privileges to administrator level, enabling high-impact confidentiality, integrity, and availability compromises on the affected WordPress site.
Advisories from Wordfence (https://www.wordfence.com/threat-intel/vulnerabilities/id/fb900810-23a2-4920-a5e8-4388c4474de0?source=cve) detail the issue, while the plugin's source code at line 624 in https://plugins.trac.wordpress.org/browser/jay-login-register/tags/2.6.01/includes/user-panel/jay-login-register-ajax-handler-user-panel.php#L624 illustrates the vulnerable function. Security practitioners should review these for mitigation guidance, such as updating to a non-vulnerable version.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-206900
Vulnerability details
The JAY Login & Register plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.6.03. This is due to the plugin allowing a user to update arbitrary user meta through the 'jay_panel_ajax_update_profile' function. This…
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makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to that of an administrator.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct privilege escalation vulnerability allowing authenticated users to modify arbitrary user meta and gain administrator rights via code flaw in the plugin.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Requires timely identification, reporting, and correction of flaws like the improper arbitrary user meta update in the JAY plugin's AJAX function, directly preventing privilege escalation exploitation.
Enforces approved authorizations for access to system resources, preventing Subscriber-level users from updating user meta to escalate privileges via the vulnerable 'jay_panel_ajax_update_profile' function.
Limits privileges to the minimum necessary for users and processes, countering the CVE's improper privilege management that allows escalation to administrator from Subscriber access.