CVE-2024-4186Network attack vector

Account takeover via empty email verification key

Published May 7, 2024 · Updated Apr 8, 2026

Authentication bypass in WisdmLabs Edwiser Bridge 3.0.5 and earlier allows remote attackers to access any WordPress user account. The eb_user_email_verify function accepts the empty default eb_user_email_verification_key because it does not reject an empty key before matching user metadata. Email Verification must be enabled and the target user ID must be known; successful requests create a session with that user's privileges, including Administrator access.

CVSS severity9.8
Critical
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in WisdmLabs Edwiser Bridge 3.0.5 and earlier allows remote attackers to access any WordPress user account. The eb_user_email_verify function accepts the empty default eb_user_email_verification_key because it does not reject an empty key before matching user metadata. Email Verification must be enabled and the target user ID must be known; successful requests create a session with that user's privileges, including Administrator access.

The record

CVE
CVE-2024-4186
Published
May 7, 2024
Updated
Apr 8, 2026
Vendor
WisdmLabs
Product
Edwiser Bridge
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=3.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WisdmLabs · Edwiser Bridgeversion=0 <=3.0.5

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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