CVE-2026-22198

GestSup versions up to and including 3.2.56 contain a pre-authentication stored cross-site scripting (XSS) vulnerability in the API error logging functionality. By sending an API request with a crafted X-API-KEY header value (for example, to /api/v1/ticket.php), an unauthenticated attacker can cause attacker-controlled HTML/JavaScript to be written to log entries. When an administrator later views the affected logs in the web interface, the injected content is rendered without proper output encoding, resulting in arbitrary script execution in the administrator’s browser session.

CVSS

No CVSS.

References

Link	Resource
https://gestsup.fr/index.php?page=changelog
https://www.vulncheck.com/advisories/gestsup-stored-xss-in-api-error-logs

Configurations

No configuration.

History

09 Jan 2026, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-09 17:15

Updated : 2026-01-09 17:15

NVD link : CVE-2026-22198

Mitre link : CVE-2026-22198

CVE.ORG link : CVE-2026-22198

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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