The Brands for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'br_brand_tooltip' Term Meta Field in all versions up to, and including, 3.8.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Because the payload is stored in term meta rather than post content, the WordPress unfiltered_html capability exception does not apply, meaning Shop Manager-level users — who normally lack unfiltered_html — can fully exploit this vulnerability.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://plugins.trac.wordpress.org/browser/brands-for-woocommerce/tags/3.8.8/ma…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/brands-for-woocommerce/tags/3.8.8/ma…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&old=3608899%40brands-for…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/89f6fa65-ef71-491e-89…
security@wordfence.com