CVE-2026-18233

The MStore API WordPress plugin before 4.21.1 does not verify that the order targeted by one of its delivery endpoints belongs to the requester, allowing any authenticated user, including Subscribers, to mark arbitrary orders as completed and paid without any payment being made.

CVSS v3.1

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

EPSS

0.17% chance of exploitation in the next 30 days, 7th percentile

Published

2026-08-29

Updated

2026-08-30

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/241c0394-8dfa-475c-a91b-e2b5e47add53/

References

• CVE Record
• NVD entry

Related

• CVE-2026-18231
• CVE-2026-18234
• CVE-2026-18230
• CVE-2026-18252
• CVE-2026-18220
• CVE-2026-1830