CVE-2025-2594Known exploitationPublic exploitNetwork attack vector

Unauthenticated account takeover via caller-supplied member ID

Published Apr 22, 2025 · Updated Aug 27, 2025

Authentication bypass in WPEverest User Registration & Membership before 4.1.3 allows remote attackers to assume any user account. The confirm_payment() AJAX handler accepts a caller-controlled member_id and invokes automatic login without verifying that the payment belongs to that user. The Membership Addon must be enabled and its public confirmation nonce obtained; successful exploitation creates a session for the chosen account, including an administrator.

CVSS severity8.1
High
EPSS probability9.06%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in WPEverest User Registration & Membership before 4.1.3 allows remote attackers to assume any user account. The confirm_payment() AJAX handler accepts a caller-controlled member_id and invokes automatic login without verifying that the payment belongs to that user. The Membership Addon must be enabled and its public confirmation nonce obtained; successful exploitation creates a session for the chosen account, including an administrator.

The record

CVE
CVE-2025-2594
Published
Apr 22, 2025
Updated
Aug 27, 2025
Vendor
WPEverest
Product
User Registration & Membership
Classifications
CWE-639, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPEverest · User Registration & Membershipversion=0 <4.1.3

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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