CVE-2026-45087

Dalfox is a powerful open-source XSS scanner and utility focused on automation. Prior to 2.13.0, when dalfox is started in REST API server mode (dalfox server), the server binds to 0.0.0.0:6664 by default and requires no API key unless the operator explicitly passes --api-key. Because model.Options — including FoundAction and FoundActionShell — is deserialized directly from attacker-supplied JSON in POST /scan, and because dalfox.Initialize explicitly propagates those two fields into the final scan options without stripping them, any unauthenticated caller who can reach the server port can supply an arbitrary shell command that the dalfox process will execute on the host whenever a scan finding is triggered. This vulnerability is fixed in 2.13.0.

• CWE-15
• CWE-78
• CWE-306

• https://github.com/hahwul/dalfox/releases/tag/v2.13.0
• https://github.com/hahwul/dalfox/security/advisories/GHSA-v25v-m36w-jp4h
• https://github.com/hahwul/dalfox/security/advisories/GHSA-v25v-m36w-jp4h

Published

May 27, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-45081Frappe HR is an open-source human resources management solut…6.5
• CVE-2026-45082Karakeep is a elf-hostable bookmark-everything app. A Server…7.6
• CVE-2026-45083The Goobi viewer is a web application that allows digitised …9.8
• CVE-2026-45084OpenSIPS is a Session Initiation Protocol (SIP) server imple…8.7
• CVE-2026-45085Discourse is an open-source discussion platform. From versio…5.3
• CVE-2026-45086Decidim is a participatory democracy framework. From 0.31.1 …5.4
• CVE-2026-45088Dalfox is a powerful open-source XSS scanner and utility foc…7.5
• CVE-2026-45089Dalfox is a powerful open-source XSS scanner and utility foc…8.2
• CVE-2026-4509A security flaw has been discovered in PbootCMS up to 3.2.12…6.3
• CVE-2026-45090Dalfox is a powerful open-source XSS scanner and utility foc…7.5
• CVE-2026-45091sealed-env is a cross-stack, zero-trust secret management li…9.1
• CVE-2026-4510A weakness has been identified in PbootCMS up to 3.2.12. Thi…4.3