JavaScript Notifier <= 1.2.8 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-1191
CVSS Medium (4.4)
Publicly Published January 23, 2026
Last Updated February 3, 2026
Researcher 0x34rth
Description

The JavaScript Notifier plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin settings in all versions up to, and including, 1.2.8. This is due to insufficient input sanitization and output escaping on user-supplied attributes in the `wp_footer` action. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References

1 affected software package

Software Type Plugin
Software Slug javascript-notifier (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.2.8
Patched Version
  • 1.2.9
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