CVE-2026-42159

Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Prior to 1.2.3, Flowsint allows a user to create investigations, which are used to manage sketches and analyses. Sketches have controllable graphs, which are comprised of nodes and relationships. The sketches contain information on an OSINT target (usernames, websites, etc) within these nodes and relationships. A remote attacker can create a node with a malicious description that contains arbitrary HTML. When the node is selected, it will render the arbitrary HTML, potentially triggering stored XSS. This vulnerability is fixed in 1.2.3.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/reconurge/flowsint/security/advisories/GHSA-w233-5mmx-cr7x	Exploit Vendor Advisory
https://github.com/reconurge/flowsint/security/advisories/GHSA-w233-5mmx-cr7x	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:flowsint:flowsint:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-14 16:16

Updated : 2026-06-17 10:47

NVD link : CVE-2026-42159

Mitre link : CVE-2026-42159

CVE.ORG link : CVE-2026-42159

JSON object : View

Products Affected

flowsint

flowsint

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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