CVE-2024-5150Network attack vector

Unauthenticated account takeover via empty activation code

Published May 29, 2024 · Updated Apr 8, 2026

Authentication bypass in OTP Login With Phone Number 1.7.26 and earlier allows remote attackers to take over any existing account. The lwp_ajax_register function accepts an empty activation_code default without rejecting the empty value before completing registration or login. Knowledge of an existing user's email address is sufficient to obtain that user's session, including an administrator account.

CVSS severity9.8
Critical
EPSS probability0.80%
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 OTP Login With Phone Number 1.7.26 and earlier allows remote attackers to take over any existing account. The lwp_ajax_register function accepts an empty activation_code default without rejecting the empty value before completing registration or login. Knowledge of an existing user's email address is sufficient to obtain that user's session, including an administrator account.

The record

CVE
CVE-2024-5150
Published
May 29, 2024
Updated
Apr 8, 2026
Vendor
Hamid Alinia
Product
OTP Login With Phone Number, OTP Verification
Classifications
CWE-288, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 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 <=1.7.26

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hamid Alinia · OTP Login With Phone Number, OTP Verificationversion=0 <=1.7.26

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 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-288Authentication Bypass Using an Alternate Path or Channel
T1078Valid Accounts

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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