Description
The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'cfs[fields][*][name]' parameter in all versions up to, and including, 2.6.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, 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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| mgibbs189 | Custom Field Suite | ≤ 2.6.5 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0ab546cc-b099-4d26-bf42-785952fcfd8c?source=cve
- https://plugins.trac.wordpress.org/browser/custom-field-suite/trunk/templates/field_html.php?order=date&desc=1#L46
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3080330%40custom-field-suite%2Ftrunk&old=3042177%40custom-field-suite%2Ftrunk&sfp_email=&sfph_mail=