CVE-2026-83533 — MEDIUM (5.3)

Vulnerability Description

The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-345

References

https://wpscan.com/vulnerability/8ffb76d6-fda5-4819-ab07-d8c086169110/

FAQ

What is CVE-2026-83533?

CVE-2026-83533 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a compl...

How severe is CVE-2026-83533?

CVE-2026-83533 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-83533?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.