CVE-2026-16041

MStore API < 4.21.0 - Unauthenticated Product Review Creation

HIGH
7.5
CVSS Score
Published: August 7, 2026 at 06:00 AM UTC
Updated: August 26, 2026 at 04:31 PM UTC
1 product affected across 1 vendorMStore API

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MStore API· Inspireuiwordpress-plugin
60%
v < 4.21.0
Affected range stops below 4.21.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/0e7d8a17-0901-45b5-959c-2c1ef1316047/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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