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CVE-2026-34443

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

Description (CNA)

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 (CNA)

Vendor / productVersions
freescout-help-desk / freescoutaffected < 1.8.211

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.