Stored Cross-Site Scripting in WPMobile.App Plugin for WordPress
CVE-2026-103421

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
WPmobile.app – Android And iOS App Builder
Vendor
CVE Published:
3 October 2026

What is CVE-2026-103421?

The WPMobile.App plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input validation and output encoding on the 'REQUEST_URI' parameter. This vulnerability permits unauthenticated attackers to inject malicious web scripts that can execute on pages viewed by users. For exploitation to succeed, the app's content mode must be set to 'webview,' a configuration that remains available despite not being the default. Users of affected versions are advised to review and update their plugin settings to mitigate potential risks.

Affected Version(s)

WPMobile.App – Android and iOS App Builder 0 <= 11.84

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/wpappninja/tru...
https://plugins.trac.wordpress.org/browser/wpappninja/tru...

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kevin Whelan
.