What is CVE-2026-103330?

CVE-2026-103330 is a medium-severity vulnerability in Sadad Qa Payment, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-10-28.

How severe is CVE-2026-103330?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Sadad Qa Payment

CVE-2026-103330

The Sadad QA Payment WordPress plugin through 1.28 does not correctly verify the authenticity of incoming payment notifications, as the verification is keyed on a merchant secret that is empty by default and the rest of the signed data is attacker-controlled, allowing unauthenticated attackers to forge a valid confirmation and mark orders as paid without payment.

Published 2026-10-28 · last modified 2026-10-28.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Sadad Qa Payment

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

wpscan.com/vulnerability/0681f5a8-a1cd-44b0-b7c8-c3eacbd9e96a/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-103330?: CVE-2026-103330 is a medium-severity vulnerability in Sadad Qa Payment, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-10-28.
How severe is CVE-2026-103330?: Medium severity. CVSS v3 base score is 5.3 out of 10.