CVE-2023-3277

MStore API <= 4.10.7 - Unauthorized Account Access and Privilege Escalation

9.8 Critical

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

3.42%Up 3.4 points since Nov 4, 2023

What each source reports

CVE List Score used 9.8

MStore API <= 4.10.7 - Unauthorized Account Access and Privilege Escalation

Record: CVE-2023-3277
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-288
Updated: 2026-11-02

EUVDEUVD-2023-43952 9.8

Record: EUVD-2023-43952
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-7pc7-crj3-6p7v 9.8

The MStore API plugin for WordPress is vulnerable to Unauthorized Account Access and Privilege...

The MStore API plugin for WordPress is vulnerable to Unauthorized Account Access and Privilege Escalation in versions up to, and including, 4.10.7 due to improper implementation of the Apple login feature. This allows unauthenticated attackers to log in as any user as long as they know the user's email address. We are disclosing this issue as the developer has not yet released a patch, but continues to release updates and we escalated this issue to the plugin's team 30 days ago.

Record: GHSA-7pc7-crj3-6p7v
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-288
Updated: 2026-11-02

NVD 9.8

Record: CVE-2023-3277
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-288
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Nuclei	MStore API <= 4.10.7 - Unauthorized Account Access and Privilege Escalation

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, Nuclei, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-3277 is a critical vulnerability (CVSS 9.8) in Inspireui Mstore Api, published November 3, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.42%, the 88th percentile. No source names a fixed version.