What’s Vulnerable › Vulnerabilities

CVE-2026-1191: JavaScript Notifier <= 1.2.8 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-24 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• freemp JavaScript Notifier: through 1.2.8

References

• https://plugins.trac.wordpress.org/browser/javascript-notifier/tags/1.2.8/javascript-notifier.php#L75
• https://plugins.trac.wordpress.org/browser/javascript-notifier/trunk/javascript-notifier.php#L75
• https://plugins.trac.wordpress.org/changeset/3449861/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/97696702-4d40-41dd-a25f-f2ee7681a2c9?source=cve

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