WP App Bar <= 1.5 - Unauthenticated Stored Cross-Site Scripting via 'app-bar-features' Parameter

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-1074
CVSS High (7.2)
Publicly Published March 6, 2026
Last Updated March 6, 2026
Researcher 0x34rth
Description

The WP App Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'app-bar-features' parameter in all versions up to, and including, 1.5. This is due to insufficient input sanitization and output escaping combined with a missing authorization check in the `App_Bar_Settings` class constructor. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into multiple plugin settings that will execute whenever a user accesses the admin settings page.

References

1 affected software package

Software Type Plugin
Software Slug wp-app-bar (view on wordpress.org)
Patched? No
Affected Version
  • <= 1.5
Patched Version
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