Klamra Paycal for Aspaclaria <= 1.1.4 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'invoice_id' Parameter

Wordfence Intelligence   >   Vulnerability Database   >   Klamra Paycal for Aspaclaria <= 1.1.4 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'invoice_id' Parameter
4.3
Authorization Bypass Through User-Controlled Key
CVE CVE-2026-8611
CVSS 4.3 (Medium)
Publicly Published June 5, 2026
Last Updated June 6, 2026
Researcher KEVIN LEE (crattack) - OPCIA

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.

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Vulnerability Details for Klamra Paycal for Aspaclaria

Klamra Paycal for Aspaclaria

Software Type Plugin
Software Slug klamra-paycal-for-aspaclaria (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.1.5, or a newer patched version
Affected Version
  • <= 1.1.4
Patched Version
  • 1.1.5

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