HOMEVULNERABILITIESCVE-2025-14440
CRITICAL

CVE-2025-14440

CWE-565Published: December 13, 2025· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Risk Analysis

The JAY Login & Register plugin for WordPress (up to 2.4.01) contains an authentication bypass vulnerability due to improper cookie handling. This allows unauthenticated remote attackers to log in as any user, including administrators, if the user ID is known.

No public exploit is known for this specific flaw, and it is not in the CISA KEV.

Recommended Action

Update the JAY Login & Register plugin to the latest available version or disable the plugin until a fix is applied.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-14440 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Mentioned vendors (from description):
WordPress
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (3)

Quick Facts

CVE IDCVE-2025-14440
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-565
CISA KEVNo
PublishedDec 13, 2025

Related CVEs (CWE-565)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2025-14440 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.