What’s Vulnerable › Vulnerabilities
CVE-2026-87837: Wava Payment 0.3.1 - 0.3.9 - Unauthenticated Order Status Change via Payment Webhook
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-21 · updated 2026-10-21
- Weakness: CWE-862
Description
The Wava Payment Plugin WordPress plugin before 0.3.10 does not verify the authenticity of incoming payment-provider notifications, nor restrict who may send them, allowing unauthenticated attackers to change the status of any WooCommerce order in the store, including marking an unpaid order as paid and completed, and cancelling other customers' orders. In versions up to 0.3.7 the response additionally returns the affected order's billing details, disclosing customer names, addresses, email addresses and phone numbers to the same unauthenticated caller.
Affected products
- Wava Payment Plugin: from 0.3.1 before 0.3.10 — fixed in 0.3.10
How to fix
Upgrade to a fixed version: Wava Payment Plugin 0.3.10. Check the vendor advisory for mitigations.
References
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