{"id":"CVE-2026-100716","title":"Froxlor is a server administration panel","summary":"Froxlor is a server administration panel. In versions 2.3.10 and earlier, the customer data-export (DataDump) cron fails to validate intermediate path components of the export destination: Froxlor\\FileDir::makeCorrectDir() contains an of…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-59"],"vendor":"froxlor","product":"froxlor","affected":["froxlor < 2.3.12"],"published":"2026-09-26","updated":"2026-09-28","sourceUpdated":"2026-09-28T15:17:11.427","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100716","references":[{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-2wjc-6mgx-hq42","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/froxlor-before-2.3.12-privilege-escalation-via-symlink","label":"disclosure@vulncheck.com"},{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-2wjc-6mgx-hq42","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00464,"epssPercentile":0.4003,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-28T14:40:34.238165Z"},"ingestedAt":"2026-09-26T13:33:20.894Z","slug":"CVE-2026-100716","body":"## Overview\n\nFroxlor is a server administration panel. In versions 2.3.10 and earlier, the customer data-export (DataDump) cron fails to validate intermediate path components of the export destination: Froxlor\\FileDir::makeCorrectDir() contains an off-by-one in its path-component walk that skips the first segment below the customer home directory, and the guard in ExportCron.php checks only the final component with is_link(). An authenticated customer whose account has the export feature enabled can schedule an export into a genuine subdirectory of their own webspace, then replace an intermediate path component with a symlink before the root-owned cron runs. The cron's `chown -R` then recursively changes ownership of the linked directory tree — for example /etc — to the customer's UID, yielding host root and cross-tenant compromise. Exploitation is deterministic and requires no race. This is an incomplete fix of GHSA-75h4-... The issue is fixed in Froxlor 2.3.12.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":67,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":211980,"id":"CVE-2026-100716","ts":1790608491430,"field":"exploit_available","old":"false","new":"true"}]}