CVE-2026-87843 Trust Payments Gateway for WooCommerce < 3.1.0 - Unauthenticated Order Payment Completion via Payment Return Page
Unauthenticated attackers can mark arbitrary orders as paid and retrieve customer details due to missing payment verification in the Trust Payments Gateway plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87843?
CVE-2026-87843 is a medium-severity vulnerability in Unknown Trust Payments Gateway for WooCommerce, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Trust Payments Gateway for WooCommerce WordPress plugin before 3.1.0 does not verify the authenticity of the payment provider's response when a customer returns from the hosted payment page, nor bind that response to the targeted order or check the amount, allowing unauthenticated attackers to mark arbitrary orders as paid without any payment being made, and to retrieve order and customer details.
Weakness: CWE-284
Which versions are affected by CVE-2026-87843?
How do I fix CVE-2026-87843?
No fix has been published for CVE-2026-87843 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-87843 being exploited?
There is no known exploitation of CVE-2026-87843 in the wild and no public exploit code.
Sources
Also known as GHSA-5q6q-3v82-v9rm.