CVE-2026-5254
CWE-79Published: April 1, 2026· Updated: Apr 1, 2026
Official Description
A security vulnerability has been detected in welovemedia FFmate up to 2.0.15. Affected by this issue is some unknown functionality of the file /ui/app/components/AppJsonTreeView.vue of the component Webhook Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Technical Analysis
CVE-2026-5254 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (4)
Quick Facts
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-5254 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts