CVE-2023-2734

CRITICAL EXPLOITED NUCLEI

MStore API < 3.9.1 - Unauthenticated Authentication Bypass via Cart Sync REST API

Title source: llm

Exploitation Summary

CVE-2023-2734 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

Description

The MStore API plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.9.1. This is due to insufficient verification on the user being supplied during the cart sync from mobile REST API request through the plugin. 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 user id.

Nuclei Templates (1)

MStore API <= 3.9.1 - Authentication Bypass

CRITICALVERIFIEDby daffainfo

FOFA: body="/wp-content/plugins/mstore-api/"

References (3)

Core 3

Core References

Patch

https://plugins.trac.wordpress.org/browser/mstore-api/tags/3.9.0/controllers/flutter-woo.php#L911

Patch

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2915729%40mstore-api&old=2913397%40mstore-api&sfp_email=&sfph_mail=#file59

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/5881d16c-84e8-4610-8233-cfa5a94fe3f9?source=cve

Scores

CVSS v3 9.8

EPSS 0.0381

EPSS Percentile 88.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

VulnCheck KEV 2023-05-25

CWE

CWE-288

Status published

Products (2)

inspireui/MStore API – Create Native Android & iOS Apps On The Cloud < 3.9.1

inspireui/mstore_api < 3.9.1

Published May 25, 2023

Tracked Since Feb 18, 2026