CVE Catalog

CVE-2026-8611

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

14th percentile - higher than 14% of all known CVEs

Summary

The Klamra Paycal for Aspaclaria WordPress plugin up to version 1.1.4 is vulnerable to Insecure Direct Object Reference (IDOR) via the 'invoice_id' parameter. Authenticated attackers with subscriber-level access can download arbitrary customer invoices by enumerating sequential post IDs.

Risk Assessment

Attackers can obtain sensitive PII of other customers, including full name, email, phone number, order total, line items, and customer notes, violating privacy and potentially leading to identity theft.

Recommendation

Update the plugin to the latest version that fixes this vulnerability. Restrict invoice access to authorized users only.

Related vulnerabilities

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS