Sensitive Data Exposure in Five Star Business Profile Plugin for WordPress
CVE-2026-86817
Key Information:
- Vendor
WordPress
- Vendor
- CVE Published:
- 4 October 2026
Badges
What is CVE-2026-86817?
The Five Star Business Profile and Schema WordPress plugin prior to version 2.4.0 is susceptible to a flaw that improperly controls the callbacks for resolving default values in schema fields. This weakness enables authenticated users with Author-level permissions or higher to insert values that can reveal sensitive information. These disclosures could potentially include other users' password hashes and various site options, which are then rendered in output accessible to unauthenticated users, thus posing a significant security risk.
Affected Version(s)
Five Star Business Profile and Schema 2.3.20 < 2.4.0
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.