FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.235, when APP_CLOUDFLARE_IS_USED is enabled, FreeScout trusts an unvalidated CF-Connecting-IP header during failed login attempts and stores the spoofed value in the activity log. LogsMonitor inserts the value into an administrator alert email without HTML escaping, allowing injected HTML to execute when an administrator opens the email. This issue is fixed in version 1.8.235.
Metrics
Affected Vendors & Products
References
History
Wed, 14 Oct 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Thu, 08 Oct 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Freescout Helpdesk
Freescout Helpdesk freescout |
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| Vendors & Products |
Freescout Helpdesk
Freescout Helpdesk freescout |
Thu, 08 Oct 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.235, when APP_CLOUDFLARE_IS_USED is enabled, FreeScout trusts an unvalidated CF-Connecting-IP header during failed login attempts and stores the spoofed value in the activity log. LogsMonitor inserts the value into an administrator alert email without HTML escaping, allowing injected HTML to execute when an administrator opens the email. This issue is fixed in version 1.8.235. | |
| Title | FreeScout: Stored HTML Injection in Administrator Alert Emails via Spoofed CF-Connecting-IP Header | |
| Weaknesses | CWE-116 CWE-79 |
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| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-08T19:52:23.040Z
Updated: 2026-10-14T01:16:50.766Z
Reserved: 2026-10-07T21:07:54.989Z
Link: CVE-2026-107393
Updated: 2026-10-14T01:16:46.171Z
Status : Awaiting Analysis
Published: 2026-10-08T20:17:33.893
Modified: 2026-10-14T02:16:56.933
Link: CVE-2026-107393
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