Vulnerabilities and security researches forcustom-logo custom-logo

Apr 16, 2026

CVE, Research URL: CVE-2026-2499
Home page URL: Security reports for Custom Logo
Application: Custom Logo
Date: Feb 26, 2026
Research Description: The Custom Logo plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected versions: max 2.2.
Status: vulnerable