Browser script execution via unsanitized SVG serving
Published Dec 22, 2025 · Updated Dec 22, 2025
Cross-site scripting in Real Time Logic FuguHub 8.1 allows remote attackers to run JavaScript when a victim opens a crafted SVG. The /fs/ file manager serves SVG content directly without sanitizing active XML or preventing the browser from executing inline script elements. Exploitation requires a victim to open the attacker-supplied file, after which the script runs in the FuguHub origin and can read or alter browser-accessible data.
Summary
What happened
Cross-site scripting in Real Time Logic FuguHub 8.1 allows remote attackers to run JavaScript when a victim opens a crafted SVG. The /fs/ file manager serves SVG content directly without sanitizing active XML or preventing the browser from executing inline script elements. Exploitation requires a victim to open the attacker-supplied file, after which the script runs in the FuguHub origin and can read or alter browser-accessible data.
The record
- CVE
- CVE-2025-65790
- Published
- Dec 22, 2025
- Updated
- Dec 22, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 22, 2025CVE publishedPublication date reported by the CVE source.
- Dec 22, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- FuguHub 8.1 Reflected SVG XSS proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo