by Kastro
Paper/Archive/CVE-2025-14440

CVE-2025-14440

jayarsiech JAY Login & Register — JAY Login & Register <= 2.4.01 - Authentication Bypass via Cookie

EPSS 0.8%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 55.0.550 × 2011.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

The JAY Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.4.01. This is due to incorrect authentication checking in the 'jay_login_register_process_switch_back' function with the 'jay_login_register_process_switch_back' cookie value. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the user id.

Affected

ProductAffectedFixed inSource
JAY Login & Register≤ 2.4.01–CNA

Scores by source

Wordfence (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refwordfence.com/threat-intel/vulnerabilities/id/928877a6-eeeb-4ed5-900b-9b1560e1bf87?source=cverefplugins.trac.wordpress.org/browser/jay-login-register/tags/2.4.01/includes/jay-login-register-user-switching.php#L98refplugins.trac.wordpress.org/changeset/3418754