CVE-2023-6486

Name of the Vulnerable Software and Affected Versions The Spectra – WordPress Gutenberg Blocks plugin for WordPress versions up to and including 2.10.3

Description The issue is related to Stored Cross-Site Scripting via the Custom CSS metabox due to insufficient input sanitization and output escaping. This allows 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.

Recommendations For versions up to and including 2.10.3, update to a version later than 2.10.3 to resolve the issue. As a temporary workaround, consider restricting access to the Custom CSS metabox to minimize the risk of exploitation.