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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.

PUBLISHED Reserved 2026-01-19 | Published 2026-01-24 | Updated 2026-01-26 | Assigner Wordfence




MEDIUM: 4.4CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-01-23:Disclosed

Credits

Bhumividh Treloges finder

References

www.wordfence.com/...-4d40-41dd-a25f-f2ee7681a2c9?source=cve

plugins.trac.wordpress.org/.../trunk/javascript-notifier.php

plugins.trac.wordpress.org/.../1.2.8/javascript-notifier.php

cve.org (CVE-2026-1191)

nvd.nist.gov (CVE-2026-1191)

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