Medium severity · published Jun 9, 2026
CVE-2026-4986
WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery
5.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WP
WPForms ·
1.10.0.1 before 1.10.0.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4986
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4986
wpscan.com
https://wpscan.com/vulnerability/1d99eed6-9a16-4d5a-90f9-ab604dfd5b92/
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