CVE-2026-103329 Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook Signature
Unauthenticated attackers can forge webhook signatures to mark arbitrary WooCommerce orders as paid without actual payment.
- 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-2026-103329?
CVE-2026-103329 is a medium-severity authentication bypass vulnerability in Unknown Super Payments, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Super Payments WordPress plugin before 1.43.1 does not properly verify the authenticity of incoming payment webhook notifications, as the signing key used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid signature and mark arbitrary WooCommerce orders as paid without payment.
Weakness: CWE-347
Which versions are affected by CVE-2026-103329?
How do I fix CVE-2026-103329?
No fix has been published for CVE-2026-103329 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-103329 being exploited?
There is no known exploitation of CVE-2026-103329 in the wild and no public exploit code.
Sources
Also known as GHSA-h768-c99r-wgcc.