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Medium 5.1Published May 12, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects reconurge flowsint. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
5.1 MEDIUM (v4.0, CNA)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
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Deferred
Record last updated
May 18, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
reconurge flowsint
reconurge:flowsint (from the name)
before 1.2.3
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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