What is CVE-2026-42157?
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.
Timeline
- 2026-05-12Published to the U.S. National Vulnerability Database (NVD)
- 2026-06-17NVD record last updated
Affected product
See advisory
Remediation Steps
- Update Avada Builder plugin to patched version immediately on all 1M+ affected installations
- Audit database for unauthorized data extraction via arbitrary file read vulnerability
- Restrict file read permissions in WordPress configuration to essential directories only
- Review user database for suspicious account creation or privilege changes
- Implement WordPress security hardening including input sanitization on all custom fields
References
Referenced in our briefings & reports
- Vulnerability Priority Report – Week 3 of May 2026 (May 18 – 24)
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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.