Authenticated shipment disclosure and modification via unchecked authorization
Published Jul 11, 2026 · Updated Jul 11, 2026
Missing authorization in MyParcel 4.25.1 and earlier allows remote authenticated users to read and alter any order's shipment options. The wcmp_get_shipment_options and wcmp_save_shipment_options AJAX handlers accept an arbitrary order identifier without verifying that the caller can access or edit that order. Subscriber-level access is sufficient to disclose or change carrier, delivery, package, label, weight, signature, and insurance settings.
Summary
What happened
Missing authorization in MyParcel 4.25.1 and earlier allows remote authenticated users to read and alter any order's shipment options. The wcmp_get_shipment_options and wcmp_save_shipment_options AJAX handlers accept an arbitrary order identifier without verifying that the caller can access or edit that order. Subscriber-level access is sufficient to disclose or change carrier, delivery, package, label, weight, signature, and insurance settings.
The record
- CVE
- CVE-2026-8678
- Published
- Jul 11, 2026
- Updated
- Jul 11, 2026
- Vendor
- Richard Perdaan
- Product
- MyParcel
- Classifications
- CWE-862
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 11, 2026CVE publishedPublication date reported by the CVE source.
- Jul 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=4.25.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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