CVE-2026-45089— dalfox 代码问题漏洞

Dalfox: Unauthenticated Arbitrary File Create/Append via `output` Option in Dalfox Server Mode

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 output, output-all, and debug fields in model.Options are JSON-tagged and deserialized directly from the attacker's request body, then propagated unchanged through dalfox.Initialize into the scan engine's logging path. The logger opens the attacker-supplied path with os.O_APPEND|os.O_CREATE|os.O_WRONLY and writes scan log lines to it. Critically, this file write block lives outside the IsLibrary guard in DalLog, so it executes even in server/library mode where file output was never intended to operate. Because no API key is required in the default configuration, an unauthenticated network caller can create or append to any file writable by the dalfox process on the host filesystem. This vulnerability is fixed in 2.13.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

文件名或路径的外部可控制

dalfox 代码问题漏洞

dalfox是HAHWUL个人开发者的一款自动化跨站脚本扫描工具。 Dalfox 2.13.0之前版本存在代码问题漏洞，该漏洞源于REST API服务器模式中output、output-all和debug字段直接从攻击者请求体反序列化并传播到扫描引擎的日志路径，可能导致未认证的网络调用者创建或追加写入任意文件。

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