CVE-2023-0926

Name of the Vulnerable Software and Affected Versions Custom Permalinks plugin for WordPress versions up to and including 2.6.0

Description The issue is related to insufficient input sanitization and output escaping on tag names, allowing authenticated users with editor-level permissions or greater to inject arbitrary web scripts in pages. These scripts will execute whenever a user accesses an injected page, even when 'unfiltered html' has been disabled.

Recommendations For versions up to and including 2.6.0, update to a version later than 2.6.0 to resolve the issue. As a temporary workaround, consider restricting access to the plugin's functionality for users with editor-level permissions or greater until a patch is available. Restrict the use of the tag names feature to minimize the risk of exploitation. Avoid using the unfiltered html option until the issue is resolved.