CVE-2023-51478Network attack vector

Unauthenticated account takeover via user ID header

Published Apr 25, 2024 · Updated Apr 28, 2026

Authentication bypass in Abdul Hakeem Build App Online 1.0.21 and earlier allows remote attackers to take over any WordPress account. The set_user_cart function trusts the user_id request header without authenticating the requester and establishes a session for the identified user. Remote attackers need no credentials or user interaction, but must know a target user ID; an administrator ID grants full site control.

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

Authentication bypass in Abdul Hakeem Build App Online 1.0.21 and earlier allows remote attackers to take over any WordPress account. The set_user_cart function trusts the user_id request header without authenticating the requester and establishes a session for the identified user. Remote attackers need no credentials or user interaction, but must know a target user ID; an administrator ID grants full site control.

The record

CVE
CVE-2023-51478
Published
Apr 25, 2024
Updated
Apr 28, 2026
Vendor
Rahamsolutions
Product
Build App Online
Classifications
CWE-306, 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 <=1.0.21
  2. Affected versionversion=n/a <=1.0.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rahamsolutions · Build App Onlineversion=0 <=1.0.21; version=n/a <=1.0.19

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 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-306Missing Authentication for Critical Function
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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