CVE-2026-4986 WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery
Unauthenticated attackers can forge PayPal webhooks to manipulate payment states due to missing signature verification in WPForms Lite.
- 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-2026-4986?
CVE-2026-4986 is a medium-severity missing authorization vulnerability in Unknown WPForms, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WPForms WordPress plugin before 1.10.0.5 does not verify the authenticity of incoming PayPal webhook events before processing them, allowing unauthenticated attackers to forge webhook payloads and manipulate the payment state of arbitrary transactions.
Weakness: CWE-862
Which versions are affected by CVE-2026-4986?
How do I fix CVE-2026-4986?
No fix has been published for CVE-2026-4986 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-4986 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4986 exists.
Sources
Also known as GHSA-xjpm-62p5-jw4j.