cvedb.io
CVE-2026-44583
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-07-20T21:16:47.380 · Last modified 2026-07-20T21:16:47.380

Summary

Paymenter is a free and open-source webshop solution for management of hosting services. In versions prior to 1.5.0, the PayPal webhook endpoint /extensions/paypal/webhook processes the PAYPAL-CERT-URL HTTP header without validation, allowing attackers to control server-side HTTP request destinations. This value is passed directly into a server-side HTTP request via file_get_contents, allowing attackers to control the destination of the request. No allowlist, validation, or signature verification is applied to the header before usage. As a result, the application can be coerced into performing HTTP requests to attacker-controlled or internal network destinations. This vulnerability allows remote unauthenticated attackers to induce server-side HTTP GET requests to arbitrary external or inte

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.