CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.3. It affects WordPress. Exploitation may require the attacker to be authenticated.
CVE
CVE-2026-8611
Severity
MEDIUM
CVSS
4.3
EPSS
0.23%
WordPress
Original NVD Description
The Klamra Paycal for Aspaclaria plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.1.4 via the 'invoice_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to download arbitrary customer invoices by enumerating sequential post IDs, exposing sensitive billing PII including full name, email address, phone number, order total, line items, and customer notes belonging to other customers.