CVE•Published 2023-11-03•Modified 2026-04-08•2 articles on news•7 live references•NVD data

CVE-2023-3277Inspireui · Mstore_api

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

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

EPSS percentile

Exploit Prediction Scoring System · top 2% of all CVEs

Weaknesses (CWE)

CWE-288Authentication Bypass Using an Alternate Path or Channel

Description

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.

Timeline

Published 2023-11-03

Modified 2026-04-08

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2023-3277

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/mstore-api/"

Matches any site loading the "mstore-api" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Inspireui Mstore Api"

All exposed Inspireui Mstore Api instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Mstore Api"

HTTP body or banner mentions "Mstore Api" — catches deploys Shodan didn't identify as a product.