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Fencer Vulns
high 8.1

CVE-2025-2594 json

User Registration & Membership < 4.1.3 - Authentication Bypass

published 2025-04-22 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-12286

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
9.5%
EPSS 9.5% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

The User Registration & Membership WordPress plugin before 4.1.3 does not properly validate data in an AJAX action when the Membership Addon is enabled, allowing attackers to authenticate as any user, including administrators, by simply using the target account's user ID.

Patch / fix

  • Unknown User Registration & Membership 4.1.3

Timeline

  1. Published
  2. First public exploit (EDB-52302)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

9.52% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-52302 WordPress User Registration & Membership Plugin 4.1.2 - Authentication Bypass webapps, 2025-05-25
  • wpscan.com https://wpscan.com/vulnerability/1c1be47a-d5c0-4ac1-b9fd-475b382a7d8f/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Unknown User Registration & Membership

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.