The Complianz – GDPR/CCPA Cookie Consent plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 7.4.4.2. This is due to the `revert_divs_to_summary` function replacing `”` HTML entities with literal double-quote characters (`"`) in post content without subsequent sanitization. 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 the injected page.
The Classic Editor plugin is required to be installed and activated in order to exploit this vulnerability.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic 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/complianz-gdpr/tags/7.4.4.2/document…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/complianz-gdpr/trunk/documents/class…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3483618/
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/bb9aedc6-42ef-4fd9-a9…
security@wordfence.com