FastSpring, CVE-2025-4595

CVE, Research URL: CVE-2025-4595
Home page URL: Security reports for FastSpring
Application: FastSpring
Published on: May 31, 2025
Research Description: The FastSpring plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'fastspring/block-fastspringblocks-complete-product-catalog' block in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output escaping on the 'color' attribute. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected versions: Min -, max 3.0.1.
Status: vulnerable