{"id":"CVE-2026-100716","revision":"1fb59663dfb84b76a2d7af8dd0d3f8e4","records":[{"revision":"1fb59663dfb84b76a2d7af8dd0d3f8e4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100716","aliases":[],"title":"Froxlor before 2.3.12 Privilege Escalation via Symlink","description":"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 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.","state":0,"publishedAt":"2026-09-26T13:24:07.854+00:00","modifiedAt":"2026-09-28T14:41:06.103+00:00","affected":[{"ecosystem":"Vendor product","name":"froxlor","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"froxlor\",\n                    \"product\": \"froxlor\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.3.12\"\n                        },\n                        {\n                            \"version\": \"2.3.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.4,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9,"severity":"CRITICAL"}],"references":["https://github.com/froxlor/froxlor/security/advisories/GHSA-2wjc-6mgx-hq42","https://www.vulncheck.com/advisories/froxlor-before-2.3.12-privilege-escalation-via-symlink"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100716","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100716","identifiers":["CVE-2026-100716"]},"retained":false,"historicalAffected":[]}],"coverage":[]}