---
id: "CVE-2026-103330"
kind: "vulnerability"
aliases: ["CVE-2026-103330"]
title: "Sadad QA Payment WordPress plugin: forged payment notices mark orders paid"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ecommerce", "package", "payments", "wordpress"]
not_affected_if: ["merchant-secret-set", "plugin-not-installed"]
published_at: "2026-10-28T11:17:13+00:00"
first_seen_at: "2026-10-28T11:32:27+00:00"
updated_at: "2026-10-28T11:33:37+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103330", "first_seen_at": "2026-10-28T11:32:27+00:00"}]
---

# Sadad QA Payment WordPress plugin: forged payment notices mark orders paid

The Sadad QA Payment WordPress plugin through 1.28 accepts payment notifications without properly checking their authenticity. Because the check uses a merchant secret that is empty by default, an unauthenticated attacker can forge a confirmation and mark orders as paid without paying.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check whether the Sadad QA Payment plugin is installed and its version is `1.28` or lower, in the WordPress admin under Plugins or in `wp-content/plugins/`.
- Check whether the plugin's merchant secret setting is empty.

## Fix

- unknown: the sources do not name a patched version. Check the plugin vendor or WordPress.org for an update past `1.28`.
- Until a fix is available, disable the plugin or set a strong merchant secret if the plugin supports it.

## Timeline

- 2026-10-28T11:32:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-103330

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_