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.

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)

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

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.

Affected products

Termix
Termix-ssh Termix — versions >= 1.7.0, < 1.10.0

Weakness classification (CWE)

Public proof-of-concept exploits

ThemeHackers/CVE-2026-22804

References

security-advisories@github.com (x_refsource_CONFIRM, 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.