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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-34443

FreeScout: SSRF protection bypass via broken CIDR check in checkIpByMask()

Description

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask() in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR ranges. The entire 10.0.0.0/8 and 172.16.0.0/12 private ranges are unprotected. This issue has been patched in version 1.8.211.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

freescout-help-desk freescout

  • < 1.8.211affected

References