Osiris Signature Banner, CVE-2026-8905

CVE, Research URL: CVE-2026-8905
Home page URL: Security reports for Osiris Signature Banner
Application: Osiris Signature Banner
Published on: Jun 24, 2026
Research Description: The Osiris Signature Banner plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Affected versions: max 0.5.
Status: vulnerable