CVE-2026-8611
MediumCVSS 4.3Summary
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 allows authenticated attackers with subscriber-level access and above to download arbitrary customer invoices.
Risk Assessment
Attackers can access sensitive customer personal information, posing a serious risk of privacy and data security breaches within the organization.
Recommendation
It is recommended to update the plugin to the latest version and implement additional validation mechanisms for user-controlled parameters to minimize risk.
Original NVD description (English source)
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.