CVE-2026-8611
Klamra Paycal for Aspaclaria <= 1.1.4 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'invoice_id' Parameter
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | klamra22 |
| Product | klamra paycal for aspaclaria |
| Published | Jun 6, 2026 |
| Last Updated | Jun 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
klamra22 / Klamra Paycal for Aspaclaria
0 ≤ 1.1.4
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/b07dc6ff-f88d-4c5a-8cd5-7c20f1755ece?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.1.1/includes/Modules/Invoices/Legacy/includes/pdf/download.php#L4 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.1.1/includes/Modules/Invoices/Legacy/includes/pdf/download.php#L7 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.1.1/includes/Modules/Invoices/Legacy/includes/render.php#L72 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.0.2/includes/Modules/Invoices/Legacy/includes/pdf/download.php#L4 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.0.2/includes/Modules/Invoices/Legacy/includes/pdf/download.php#L7 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.0.2/includes/Modules/Invoices/Legacy/includes/render.php#L72 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3555026%40klamra-paycal-for-aspaclaria&new=3555026%40klamra-paycal-for-aspaclaria&sfp_email=&sfph_mail=
Credits
KEVIN LEE