8.1

CVE-2025-2594: unknown user registration & membership

CVSS: 8.1v3.1HighAnalyzed
Published 22-04-2025Last modified 27-08-2025
Open JSON

Vulnerability summary

CVE-2025-2594 is a high (CVSS 8.1) vulnerability in unknown user registration & membership. EPSS estimates a 9.52% chance of exploitation in the next 30 days, higher than 95.4% of scored vulnerabilities. 2 public exploits are recorded. Fixed in 4.1.3.

Overall risk
44/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
9.52%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 22-04-2025
    PublishedVulnerability first disclosed.
  2. 27-08-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

9.52%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

+0.08 pp

From 9.44% on 19-09-2026

19-09-202619-10-2026
EPSS score
9.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

  • exploit-databasemultipleUnverified

    WordPress User Registration & Membership Plugin 4.1.2 - Authentication Bypass

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Unknown1 product
Wordpress1 product
  • user-registration≤ 4.1.2 (fixed in 4.1.3)
Wpeverest1 product

3 vendors · 3 products

References

2 links