Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-42157— Flowsint: Stored XSS on map node marker in map page

Quick assessment

Affected
reconurge flowsint
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flowsint是reconurge开源的一个开源情报图形化调查工具。 Flowsint 1.2.3之前版本存在跨站脚本漏洞，该漏洞源于地图节点标签包含任意HTML，可能导致存储型跨站脚本攻击。

AI Predicted 6.1 Difficulty: Easy EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
reconurge flowsint < 1.2.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-42157

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Flowsint: Stored XSS on map node marker in map page
Source: CVE Program / CVE List V5
Vulnerability Description
Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Prior to 1.2.3, a remote attacker can create a map node with a malicious label that contains arbitrary HTML. When the map tab is selected and a map node marker is selected, it will render the arbitrary HTML, potentially triggering stored XSS. This vulnerability is fixed in 1.2.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Flowsint 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flowsint是reconurge开源的一个开源情报图形化调查工具。 Flowsint 1.2.3之前版本存在跨站脚本漏洞，该漏洞源于地图节点标签包含任意HTML，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
reconurge flowsint < 1.2.3 -

II. Public POCs for CVE-2026-42157

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-42157

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-42157 (1)

Same Patch Batch · reconurge · 2026-05-12 · 4 CVEs total

CVE-2026-42158 Flowsint: Broken Access Control allows modification of investigation metadata from any use
CVE-2026-42156 Flowsint: Cypher query injection in node type on node creation
CVE-2026-44352 Flowsint: Broken Access Control allows reading of sketch logs from any user

IV. Related Vulnerabilities

Same product: flowsint
Same vendor: reconurge
Same weakness: CWE-79

V. Comments for CVE-2026-42157

No comments yet

Leave a comment