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.
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Affected Vendors & Products
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History
Fri, 09 Jan 2026 19:15:00 +0000
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ssvc
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Fri, 09 Jan 2026 16:30:00 +0000
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| Description | 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. | |
| Title | GestSup <= 3.2.56 Stored XSS in API Error Logs | |
| Weaknesses | CWE-79 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-01-09T18:37:21.402Z
Reserved: 2026-01-06T16:47:17.184Z
Link: CVE-2026-22198
Updated: 2026-01-09T17:47:53.707Z
Status : Received
Published: 2026-01-09T17:15:55.310
Modified: 2026-01-09T17:15:55.310
Link: CVE-2026-22198
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OpenCVE Enrichment
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