CVE-2026-6203Public exploitNetwork attack vector

Unauthenticated open redirect via logout parameter

Published Apr 13, 2026 · Updated Apr 13, 2026

Open redirect in WPEverest User Registration & Membership 5.1.4 and earlier allows remote attackers to redirect users after logout. The redirect_to_on_logout handler passes the GET parameter through esc_url_raw() and then to wp_redirect(), which accepts external hosts instead of restricting the destination. No account is required, but a user must open the crafted logout link; successful exploitation sends that user to an attacker-chosen site for phishing.

CVSS severity6.1
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in WPEverest User Registration & Membership 5.1.4 and earlier allows remote attackers to redirect users after logout. The redirect_to_on_logout handler passes the GET parameter through esc_url_raw() and then to wp_redirect(), which accepts external hosts instead of restricting the destination. No account is required, but a user must open the crafted logout link; successful exploitation sends that user to an attacker-chosen site for phishing.

The record

CVE
CVE-2026-6203
Published
Apr 13, 2026
Updated
Apr 13, 2026
Vendor
WPEverest
Product
User Registration & Membership
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 2026Record 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 <=5.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPEverest · User Registration & Membershipversion=0 <=5.1.4

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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 exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

Public exploit references

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

Technologies

Your stack

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Your stack

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