TI-2026-04589 Aliases CVE-2026-5254 GHSA-hjf3-5wh2-p9qw

welovemedia FFmate Webhook AppJsonTreeView.vue cross site scripting

MEDIUM 56CWE-79Published 2026-04-01 · Updated 2026-04-01

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00248 16th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

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

Vendor	Product	Affected versions	Fixed in	Status	Source
welovemedia	FFmate	2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; 2.0.6; 2.0.7; 2.0.8; 2.0.9; 2.0.10; 2.0.11; 2.0.12; 2.0.13; 2.0.14; 2.0.15	—	No fix listed	CNA

FFmate Vendorwelovemedia Affected 2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; 2.0.6; 2.0.7; 2.0.8; 2.0.9; 2.0.10; 2.0.11; 2.0.12; 2.0.13; 2.0.14; 2.0.15 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-5254
2026-10-03 Alias added: GHSA-hjf3-5wh2-p9qw

References

Exploit 1

https://github.com/CC-T-454455/Vulnerabilities/tree/master/ffmate/vulnerability-2

TI-2026-03177 welovemedia FFmate ffmpeg.go Execute argument injection CVSS 4.0MEDIUM 5.3
TI-2026-03176 welovemedia FFmate webhook.go fireWebhook server-side request forgery CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences