XSS in Termix
CVE-2026-22804
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 1.7.0 to 1.9.0, Stored Cross-Site Scripting (XSS) vulnerability exists in the Termix File Manager component. The application fails to sanitize SVG file content before rendering it. This allows an attacker who has compromised a managed SSH server to plant a malicious file, which, when previewed by the Termix user, executes arbitrary JavaScript in the context of the application. The vulnerability is located in src/ui/desktop/apps/file-manager/components/FileViewer.tsx. This vulnerability is fixed in 1.10.0.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (9.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Termix
- Termix-Ssh Termix — versions >= 1.7.0, < 1.10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/Termix-SSH/Termix/security/advisories/GHSA-m3cv-5hgp-hv35 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-22804?
- CVE-2026-22804 is a high-severity vulnerability in Termix, classified under Cross-site Scripting. CVSS score: 8.0/10. Published 2026-01-12.
- How severe is CVE-2026-22804?
- High severity. CVSS v3 base score is 8.0 out of 10.
- Is CVE-2026-22804 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.