Arbitrary File Read/Write in Flowise WriteFileTool and ReadFileTool
CVE-2025-61913 is a critical vulnerability in Flowise, a drag-and-drop interface for building customized large language model flows. In Flowise versions prior to 3.0.8, the WriteFileTool and ReadFileTool do not properly restrict file path access. As a result, an authenticated attacker can supply attacker-controlled paths and read from or write to arbitrary locations on the underlying filesystem outside any intended restricted directory. The issue is consistent with path traversal / improper pathname restriction behavior and affects remote deployments where these tools are exposed through Flowise functionality. Because arbitrary file write can be used to modify sensitive application, system, or user files, the vulnerability may be chained into remote command execution depending on the target environment and writable paths.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
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Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical vulnerability in Flowise described as enabling remote code execution (RCE) and arbitrary file write, with a reported CVSS score of 10.0.
An arbitrary file read and arbitrary file write vulnerability in Flowise (WriteFileTool/ReadFileTool) due to insufficient file path restrictions (path traversal), enabling authenticated attackers to access or modify arbitrary filesystem paths and potentially achieve remote command execution.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.