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Vulnerability record · CVE-2026-1074 · published 7 March 2026

CVE-2026-1074: Cross-site scripting vulnerability

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.

7.2 CVSS 3.1 High EPSS 0.23% · top 87.2% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/wp-app-bar/tags/1.5/includes/class-app-bar-settings.php#L89
https://plugins.trac.wordpress.org/browser/wp-app-bar/trunk/includes/class-app-bar-settings.php#L89
https://www.wordfence.com/threat-intel/vulnerabilities/id/9b448712-b989-453f-9acb-5556e01e41a4?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-1074), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.