PT-2026-83400 · WordPress · Mstore Api

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CVE-2026-18234

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Published

2026-08-29

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Updated

2026-08-30

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Name of the Vulnerable Software and Affected Versions MStore API versions prior to 4.21.1
Description The MStore API WordPress plugin fails to verify if the order targeted by its wallet payment handling belongs to the requester. Additionally, it does not deduct the wallet balance for most payment methods. This allows any authenticated user, including those with Subscriber roles, to mark arbitrary orders as paid without any actual payment being processed.
Recommendations Update MStore API to version 4.21.1 or later.

Exploit

Fix

Missing Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-18234

Affected Products

Mstore Api