Flowsint: Stored XSS on map node marker in map page
Priority MEDIUM 56CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00343 28th percentileScored 2026-11-07
Fix Fixed flowsint (reconurge): 1.2.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA flowsint (reconurge) Fixed in 1.2.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-42157
More reconurge vulnerabilities
- TI-2026-30485 Flowsint: Cypher query injection in node type on node creation CVSS 4.0HIGH 7.1
- TI-2026-32317 Flowsint: Broken Access Control allows reading of sketch logs from any user CVSS 4.0MEDIUM 5.3
- TI-2026-30487 Flowsint: Broken Access Control allows modification of investigation metadata from any user CVSS 4.0LOW 2.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences