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

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Summary

CVECVE-2026-8611
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-06 05:16:29 UTC
Updated2026-06-06 05:16:29 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Klamra22 Klamra Paycal For Aspaclaria affected 1.1.4 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.1.1/includes/Modu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.1.1/includes/Modu... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/b07dc6ff-f88d-4c5a-8cd5-7c20f... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.0.2/includes/Modu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.0.2/includes/Modu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.0.2/includes/Modu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/klamra-paycal-for-aspaclaria/tags/1.1.1/includes/Modu... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: KEVIN LEE (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-30T18:14:50.000ZVendor Notified
CNA2026-06-05T14:28:53.000ZDisclosed
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