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CVE-2025-58434 – Unauthenticated password-reset token disclosure in Flowise (account takeover)

CVE-2025-58434 is a critical authentication/authorization vulnerability affecting Flowise (Cloud and self-hosted) versions 3.0.5 and earlier. The application’s forgot-password endpoint returns a valid password reset temporary token (tempToken) in the API response without requiring proper authentication or verification, allowing any remote attacker to generate or obtain reset tokens for arbitrary users and immediately reset their passwords. Successful exploitation can lead to full account takeover, unauthorized access to saved flows and data, and potential lateral movement or persistence within impacted deployments.

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References:

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1

Map your entire attack surface (continously)

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4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

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Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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