AJAX Vulnerability in Nova Poshta Shipping Plugin for WordPress
CVE-2026-87846

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Shipping For Nova Poshta
Vendor
CVE Published:
9 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-87846?

The Nova Poshta Shipping plugin for WordPress versions up to 1.19.8 is exposed to serious security risks due to a lack of authorization, nonce, and ownership checks on an AJAX action. This oversight allows unauthenticated users to delete shipment records associated with arbitrary orders. Attackers can exploit this vulnerability by issuing requests that delete these records without any restrictions, leveraging the store’s API credentials to make waybill-deletion requests. This compromises the integrity of order management and can severely disrupt business operations.

Affected Version(s)

Shipping for Nova Poshta 1.18.7 <= 1.19.8

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-87846 - Proof of Concept

References

https://wpscan.com/vulnerability/e1ba1fbc-f61f-446f-a312-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Emiliano Carrizo
WPScan
.