CVE-2026-107393
LogsMonitor inserts the value into an administrator alert email without HTML escaping, allowing injected HTML to execute when an administrator opens the email.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.23% probability · 14th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79, CWE-116
- Source
- security-advisories@github.com
EPSS moved from 0.2% on 9 October 2026 to 0.2% on 26 October 2026.
References
- https://github.com/freescout-help-desk/freescout/commit/0f41f5cabb581de156ec8eb344ff6c0e6e0cc66a
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.235
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-9cm3-qvj2-8hg4
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-9cm3-qvj2-8hg4
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.