{"id":"CVE-2026-34443","title":"FreeScout is a free help desk and shared inbox built with PHP's Laravel framework","summary":"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 /, s…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-918"],"vendor":"freescout","product":"freescout","affected":["freescout < 1.8.211"],"patched":["freescout 1.8.211"],"published":"2026-03-31","updated":"2026-07-24","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34443","references":[{"url":"https://github.com/freescout-help-desk/freescout/commit/ca6d5bb572d3e8f52a0e654a8623a53cb0fdd580","label":"security-advisories@github.com"},{"url":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.211","label":"security-advisories@github.com"},{"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-c9v3-4c59-x5q2","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00397,"epssPercentile":0.31157,"ingestedAt":"2026-07-25T21:03:57.979Z","slug":"CVE-2026-34443","body":"## Overview\n\nFreeScout 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.\n\n## Affected\n\n- `freescout < 1.8.211`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `freescout 1.8.211`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}