Threat Intelligence Database

Dalfox is a powerful open-source XSS scanner and utility focused on automation. Prior to 2.13.0, when dalfox is run in REST API server mode, the custom-payload-file field in model.Options is JSON-tagged and deserialized directly from the attacker's request body, then propagated unchanged through dalfox.Initialize into the scan engine. The engine passes the value to voltFile.ReadLinesOrLiteral, which reads lines from any file path accessible to the dalfox process and embeds each line as an XSS payload in outbound HTTP requests directed at the attacker-controlled target URL. Because the server has no API key by default, an unauthenticated network attacker can exfiltrate the contents of arbitrary files on the dalfox host by reading them line-by-line through scan traffic. This vulnerability is fixed in 2.13.0.

CVE-2026-45087 is a critical vulnerability in hahwul dalfox versions prior to 2.13.0. When running dalfox in REST API server mode, it binds to all interfaces on port 6664 by default without requiring an API key. The server deserializes attacker-controlled JSON input for scan options, including fields that allow arbitrary shell command execution on the host when a scan finding is triggered. This vulnerability allows unauthenticated remote attackers to execute arbitrary commands. The issue is fixed in version 2.13.0.