CVE-2023-51484Network attack vector

Unauthenticated account takeover via client-controlled switch sessions

Published Apr 25, 2024 · Updated Apr 28, 2026

Improper authentication in WP-Buy Login as User or Customer 3.8 and earlier allows remote attackers to take over WordPress accounts. The user-switching and return actions trust cookie-based session state without nonce or capability checks, allowing a supplied identity to become an authenticated session. No prior account or user interaction is required, and successful exploitation grants the target account's WordPress privileges.

CVSS severity9.8
Critical
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in WP-Buy Login as User or Customer 3.8 and earlier allows remote attackers to take over WordPress accounts. The user-switching and return actions trust cookie-based session state without nonce or capability checks, allowing a supplied identity to become an authenticated session. No prior account or user interaction is required, and successful exploitation grants the target account's WordPress privileges.

The record

CVE
CVE-2023-51484
Published
Apr 25, 2024
Updated
Apr 28, 2026
Vendor
WP-Buy
Product
Login as User or Customer — User Switching
Classifications
CWE-287, CAPEC-233, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=3.8
  2. Affected versionversion=n/a <=3.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP-Buy · Login as User or Customer — User Switchingversion=0 <=3.8; version=n/a <=3.8

Published CVSS scores

9.8PatchstackCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CAPEC-233Privilege Escalation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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