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CVE-2026-8611

MEDIUM 4.3 CVSS 3.1
Published
June 6, 2026
Last modified
July 23, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-639
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

Affected WordPress components

  • Klamra Paycal for Aspaclaria Plugin · klamra-paycal-for-aspaclaria
    Confirmed match Active
    Up to and including 1.1.4
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • klamra22 Klamra Paycal for Aspaclaria — Up to and including 1.1.4

References

  • 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/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/changeset?sfp_email=&sfph_mail=&reponame=&old=3555026%40klamra-paycal-for-aspaclaria&new=3555026%40klamra-paycal-for-aspaclaria&sfp_email=&sfph_mail=
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/b07dc6ff-f88d-4c5a-8cd5-7c20f1755ece?source=cve
  • nvd.nist.gov Official NVD record