CVE-2026-34443

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/freescout-help-desk/freescout/commit/ca6d5bb572d3e8f52a0e654a8623a53cb0fdd580	Patch
https://github.com/freescout-help-desk/freescout/releases/tag/1.8.211	Release Notes
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-c9v3-4c59-x5q2	Vendor Advisory Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:*

History

13 Apr 2026, 15:14

Type	Values Removed	Values Added
References	~~() https://github.com/freescout-help-desk/freescout/commit/ca6d5bb572d3e8f52a0e654a8623a53cb0fdd580 -~~	() https://github.com/freescout-help-desk/freescout/commit/ca6d5bb572d3e8f52a0e654a8623a53cb0fdd580 - Patch
References	~~() https://github.com/freescout-help-desk/freescout/releases/tag/1.8.211 -~~	() https://github.com/freescout-help-desk/freescout/releases/tag/1.8.211 - Release Notes
References	~~() https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-c9v3-4c59-x5q2 -~~	() https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-c9v3-4c59-x5q2 - Vendor Advisory, Exploit
First Time		Freescout Freescout freescout
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
CPE		cpe:2.3:a:freescout:freescout::::::::

31 Mar 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-31 22:16

Updated : 2026-04-13 15:14

NVD link : CVE-2026-34443

Mitre link : CVE-2026-34443

CVE.ORG link : CVE-2026-34443

JSON object : View

Products Affected

freescout

freescout

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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