CVE-2026-87846: CWE-862 Missing Authorization in Shipping for Nova Poshta
Description
The Shipping for Nova Poshta WordPress plugin through 1.19.8 does not perform any authorisation, nonce or ownership checks on one of its AJAX actions available to unauthenticated users, allowing anyone to delete the shipment records of arbitrary orders and to make the store issue the carrier's waybill-deletion request for those orders using the store's own stored API credentials.
CVSS v3.1
Score 5.3medium
Affected software
Shipping for Nova Poshta
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87846 is a missing authorization vulnerability (CWE-862) in the Shipping for Nova Poshta WordPress plugin up to version 1.19.8. The plugin exposes an AJAX action accessible to unauthenticated users that lacks proper authorization and nonce validation. This allows attackers to delete shipment records of arbitrary orders and trigger carrier waybill deletion requests using the store's stored API credentials. The vulnerability impacts plugin versions from 1.18.7 through 1.19.8 inclusive.
Potential Impact
An attacker can delete shipment records for any order without authentication, potentially disrupting order fulfillment and logistics. Additionally, the attacker can cause the store to send waybill deletion requests to the carrier, which may interfere with shipping processes. There is no confidentiality or availability impact reported, but integrity of shipment data is compromised.
Mitigation Recommendations
No official patch or fix is currently documented. Users should monitor the vendor advisory for updates. Until a fix is available, restrict access to the affected AJAX endpoint if possible or disable the plugin temporarily to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-09T11:30:32.657Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac8cda92cdf04f6564f74b6
Added to database: 10/09/2026, 11:19:05 UTC
Last enriched: 10/09/2026, 11:33:20 UTC
Last updated: 10/09/2026, 18:57:32 UTC
Views: 17
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