EUVD-2026-17777
GHSA-hjf3-5wh2-p9qw
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionCVE.org
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.
AnalysisAI
Stored cross-site scripting (XSS) in welovemedia FFmate up to version 2.0.15 allows authenticated remote attackers to inject malicious scripts via the Webhook Handler component's AppJsonTreeView.vue file. The vulnerability requires user interaction to trigger payload execution and has been publicly disclosed with exploit code available on GitHub. The vendor has not responded to early disclosure notifications, leaving users without an official patch.
Technical ContextAI
The vulnerability exists in the AppJsonTreeView.vue component of FFmate's Webhook Handler functionality, indicating improper input sanitization within a Vue.js component responsible for rendering JSON tree structures. This is a classic reflected or stored XSS vulnerability (CWE-79) where user-controlled input from webhook payloads is rendered without proper HTML escaping or Content Security Policy (CSP) protections. The affected component likely constructs DOM elements dynamically based on JSON input without neutralizing special characters or JavaScript event handlers. The attack vector is network-based with low complexity, requiring only that an authenticated user (PR:L in CVSS vector) interact with a malicious webhook payload displayed in the UI (UI:P requirement indicates user interaction is mandatory).
RemediationAI
Users of FFmate should immediately upgrade to a version newer than 2.0.15 once available, though vendor patch status is not confirmed given the lack of vendor response. As an interim mitigation, administrators should restrict access to the Webhook Handler component to only trusted users, implement network-level access controls to the FFmate application, and consider deploying a Web Application Firewall (WAF) with XSS detection rules to filter malicious webhook payloads before they reach the application. Additionally, enabling browser-based protections such as Content Security Policy (CSP) headers and X-XSS-Protection headers on the FFmate deployment may reduce exploitation impact. Users should monitor the VulDB advisory at https://vuldb.com/vuln/354444 and GitHub security advisories for any upstream patches or community-provided fixes. Given vendor non-responsiveness, consider whether alternative webhook management solutions with active security maintenance are viable.
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today