WPForms Lite < 1.10.0.5 – Unauthenticated PayPal Webhook Forgery
Priority MEDIUM 63CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00202 10th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed WPForms (Unknown): 1.10.0.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | WPForms | 1.10.0.1 to before 1.10.0.5 | 1.10.0.5 | Patch available | CNA |
- WPForms VendorUnknown Affected 1.10.0.1 to before 1.10.0.5 Fixed in 1.10.0.5 Patch available CNA
Remediation
- Fix · CNA WPForms (Unknown) Fixed in 1.10.0.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4986
- 2026-10-03 Alias added: GHSA-xjpm-62p5-jw4j
References
Sources
- CVE-2026-4986 · CVE Program
- CVE-2026-4986 · NVD
- FIRST EPSS
- GHSA-xjpm-62p5-jw4j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences