Mstore Api - Authentication Bypass (CVE-2024-6328)

Q: Am I affected by this vulnerability?

You are affected if your site runs Mstore Api. Versions below 4.15.0 are vulnerable; that release and later are not. No account is needed to exploit this, so a public site is reachable by anyone.

Q: How do I fix it?

Update Mstore Api to version 4.15.0 or later. That is the complete fix. Until you can update, Administrator multi-factor authentication in Hack Halt Pro contains this class of attack at the request layer.

Q: What can an attacker actually do?

This is a Authentication Bypass flaw. An attacker who exploits it can sign in as another user, frequently an administrator, without a password.

CVE-2024-6328

Vulnerability CVE-2024-6328 PLUGIN mstore-api CRITICAL

The MStore API – Create Native Android & iOS Apps On The Cloud plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 4.14.7. This is due to insufficient verification on the 'phone' parameter of the 'firebase_sms_login' and 'firebase_sms_login_v2' functions. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the email address or phone number. Additionally, if a new email address is supplied, a new user account is created with the default role, even if registration is disabled.

CVE-2024-6328

CRITICAL CVSS 9.8 Published 2024-07-12 Updated 2026-06-17

AI Risk Critical (100/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P1 Immediate

Severity Band CRITICAL

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Components 1

Reference Links 4

AI Risk Engine Critical (100/100)

Exploitability Very High

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2024-07-12 CVE published and first recorded in the threat feed.
2026-06-17 Record updated with latest vulnerability metadata.
2026-04-09 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 218 days ago

AI enriched 218 days ago (2026-04-09 07:46 UTC)

Technical Summary

Potential Impact

Severity is CRITICAL (CVSS 9.8). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Very High based on remote code execution potential, low-bar exploit prerequisites.

Primary risk drivers: remote code execution potential, low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Mstore Api PLUGIN · mstore-api Affected: < 4.15.0 Fixed in: 4.15.0

References

What to do about this

Patch immediately Serious, and reachable without meaningful privilege.

Fix it

Update Mstore Api to 4.15.0 or later.

That is the complete fix. Everything below is what protects you in the meantime.

Cannot update today? Administrator multi-factor authentication in Hack Halt Pro blocks this class of attack before WordPress processes the request.

Require a second factor for every administrator account. This is the single highest-value control against credential stuffing and reused passwords, because a valid password alone stops being enough.

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