Vulnerability · Published Aug 7, 2026 · Assigned by WPScan
CVE-2026-16041MStore API < 4.21.0 - Unauthenticated Product Review Creation
High 7.5
In plain English
A high-severity missing authorization in MStore API from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 70.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The MStore API WordPress plugin before 4.21.0 does not perform authorization or purchase-ownership checks on its REST product-review creation route, allowing an unauthenticated attacker to create WooCommerce product reviews with an attacker-chosen reviewer name, email and star rating on stores configured to accept reviews only from verified owners.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | MStore API | 0 – before 4.21.0 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
- https://wpscan.com/vulnerability/0e7d8a17-0901-45b5-959c-2c1ef1316047/ exploit, vdb-entry, technical-description