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WowOptin <= 1.4.37 — Missing Authorization to Unauthenticated Opt-In Deactivation

CVE-2026-14603Published · Updated

Action summary

Affected: ≤1.4.37Update to 1.4.38 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-862 Missing Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation optin

  1. Affected≤ 1.4.37
  2. Patched in1.4.38

Update to 1.4.38 or newer.

You are affected if you run ≤ 1.4.37. Version 1.4.38 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation.
  • 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 1.4.38, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Pedro Pinho.

The WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 1.4.37. This makes it possible for unauthenticated attackers to deactivate opt-in statuses.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation

All 4
More vulnerabilities in WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Server-Side Request Forgery via 'link' Parameter in REST API
≤1.4.29Update to 1.4.30
CVE-2026-4302
High8.8Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Installation
≤1.4.24Update to 1.4.25
CVE-2026-1720
Medium5.3Missing Authorization
≤1.4.37Update to 1.4.38
CVE-2026-39700

Same weakness (Missing Authorization)

All Missing Authorization
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CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

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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