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WPForms Lite <= 1.10.0.4 — Unauthenticated Payment Bypass

CVE-2026-4986Published · Updated

Action summary

Affected: ≤1.10.0.4Update to 1.10.0.5 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-602 Client-Side Enforcement of Server-Side Security
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More wpforms-lite

  1. Affected≤ 1.10.0.4
  2. Patched in1.10.0.5

Update to 1.10.0.5 or newer.

You are affected if you run ≤ 1.10.0.4. Version 1.10.0.5 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 1.10.0.5, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Sudhanshu Chauhan.

The WPForms Lite plugin for WordPress is vulnerable to Payment Bypass in versions up to, and including, 1.10.0.4. This is due to a a lack of verification on PayPal webhooks. This makes it possible for unauthenticated attackers to bypass payment.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More

All 28
More vulnerabilities in WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting
≤2.0.3Update to 2.0.3.1
CVE-2026-54851
Medium5.32.0.2.1 - Unauthenticated Payment Bypass on Paid Forms
1.10.0.1 – 2.0.2.1Update to 2.0.2.2
CVE-2026-82844
Medium4.7Reflected Cross-Site Scripting via 'query_var' Smart Tag in iframe srcdoc Attribute
≤2.0.2.1Update to 2.0.2.2
CVE-2026-101921
Medium6.1Reflected Cross-Site Scripting via 'page_title' POST Parameter
≤2.0.2Update to 2.0.2.1
CVE-2026-88996
Medium6.52.0.2 - Unauthenticated Arbitrary Shortcode Execution
1.5.0.1 – 2.0.2Update to 2.0.2.1
CVE-2026-84744

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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