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SSH CVE-2026-22804

HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-01-12 security-advisories@github.com
SSH XSS Termix
8.0
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.0 HIGH
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 16, 2026 - 18:37 vuln.today
Public exploit code
CVE Published
Jan 12, 2026 - 23:15 nvd
HIGH 8.0

DescriptionGitHub Advisory

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.

AnalysisAI

Stored XSS in Termix File Manager (versions 1.7.0-1.9.0) allows attackers with SSH server access to execute arbitrary JavaScript by uploading malicious SVG files that bypass content sanitization. When a Termix user previews the crafted file, the payload executes within the application context with full access to sensitive operations. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Compromise managed SSH server
Exploit
Plant malicious SVG file
Execution
Trick user to preview file
Impact
Execute arbitrary JavaScript in Termix context
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Vulnerability AssessmentAI

Exploitation Termix versions 1.7.0 to 1.9.0 with File Manager component; attacker must have prior SSH server compromise; victim must click file preview action on planted SVG file Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.0 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to compromise the affected system.
Remediation Fixed in version 1.10.0.. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 7 days: Identify all affected systems and apply vendor patches promptly. …

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CVE-2026-22804 vulnerability details – vuln.today
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