CVE-2025-59528
Scores
EPSS
Percentile: 78.4%
CVSS
CVSS Score: 10.0/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Changed (C)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Description
Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, Flowise is vulnerable to remote code execution. The CustomMCP node allows users to input configuration settings for connecting to an external MCP server. This node parses the user-provided mcpServerConfig string to build the MCP server configuration. However, during this process, it executes JavaScript code without any security validation. Specifically, inside the convertToValidJSONString function, user input is directly passed to the Function() constructor, which evaluates and executes the input as JavaScript code. Since this runs with full Node.js runtime privileges, it can access dangerous modules such as child_process and fs. This issue has been patched in version 3.0.6.
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Sources
CWEs
Exploits
Reference Links
Vulnerable Software (2)
Type: Configuration
Operating System:
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "3.0.6", "versionStartInclu...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "3.0.6", "versionStartIncluding": "3.0.5" } ], "negate": false, "operator": "OR" } ], "operator": "OR"}
Source: anchore_overrides
Type: Configuration
Vendor: flowiseai
Product: flowise
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:flowiseai:flowise:3.0.5:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd