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WordPress plugin

WowOptin <= 1.4.37 — Missing Authorization

CVE-2026-39700Published · 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 Nabil Irawan.

The WowOptin plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 1.4.37. This makes it possible for unauthenticated attackers to perform an unauthorized action.

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
Medium5.3Missing Authorization to Unauthenticated Opt-In Deactivation
≤1.4.37Update to 1.4.38
CVE-2026-14603
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

Same weakness (Missing Authorization)

All Missing Authorization
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SeverityVulnerabilityCVEPublished
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EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
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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