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.

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History

Thu, 21 May 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Flowsint
Flowsint flowsint
CPEs cpe:2.3:a:reconurge:flowsint:*:*:*:*:*:*:*:* cpe:2.3:a:flowsint:flowsint:*:*:*:*:*:*:*:*
Vendors & Products Flowsint
Flowsint flowsint

Thu, 21 May 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:reconurge:flowsint:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Thu, 14 May 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 14 May 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Reconurge
Reconurge flowsint
Vendors & Products Reconurge
Reconurge flowsint

Thu, 14 May 2026 16:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Flowsint: Stored XSS in description of node
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-14T18:21:16.068Z

Reserved: 2026-04-24T17:15:21.836Z

Link: CVE-2026-42159

cve-icon Vulnrichment

Updated: 2026-05-14T18:21:09.032Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-14T16:16:20.993

Modified: 2026-05-21T20:22:50.920

Link: CVE-2026-42159

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T18:00:14Z

Weaknesses