Vulnerability · Published Jun 9, 2026 · Assigned by WPScan

CVE-2026-4986WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery

Medium 5.3

In plain English

A medium-severity missing authorization in WPForms from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.2%top 89.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	WPForms	1.10.0.1 – before 1.10.0.5

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

https://wpscan.com/vulnerability/1d99eed6-9a16-4d5a-90f9-ab604dfd5b92/ exploit, vdb-entry, technical-description