VulnSocial

CVE-2026-42157General

LOWCVSS 5.1 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-13: 1Technical Details · 2026-05-13: 105-13
Signal classification1 categories
General
1100.0%
Referenced assets2 URLs
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-42157 Stored Cross-Site Scripting in Flowsint Before Version 1.2.3 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42157 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    The text identifies CVE-2026-42157 as a stored XSS flaw in Flowsint prior to v1.2.3 and links to a vulnerability details page, but provides no PoC, exploit, patch, or active exploitation information.

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    4.0K followersView on X

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