SSRF in Freescout
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.003 (20.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Freescout
- Freescout-help-desk Freescout — versions < 1.8.211
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-34443?
- CVE-2026-34443 is a medium-severity vulnerability in Freescout, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-03-31.
- How severe is CVE-2026-34443?
- Medium severity. CVSS v3 base score is 5.3 out of 10.