{"id":"CVE-2026-100715","published":"2026-09-26T14:16:57.427","lastModified":"2026-09-28T17:17:45.913","description":"Froxlor through 2.3.10 is vulnerable to arbitrary file deletion via symlink following in the FTP data deletion cron task. Cron task 8 (deleteFtpData), queued when an FTP account is deleted, calls FileDir::makeCorrectDir() without the $fixed_homedir argument, so the symlink component walk is skipped, and then executes 'rm -rf' as root on the resulting path with string-level guards only. Because makeCorrectDir() appends a trailing slash, GNU rm dereferences a symlink used either as an intermediate path component or as the final component. An authenticated customer who can write to the FTP home directory can plant a symlink between task insertion and cron execution, causing the root cron job to recursively delete arbitrary directory trees, resulting in cross-tenant data destruction and host denial of service. This issue is fixed in Froxlor 2.3.12.","cvssScore":9.6,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H","cwes":["CWE-59"],"vendors":[],"products":[],"references":[{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-px4q-2rf7-cvcf","tags":[]},{"url":"https://www.vulncheck.com/advisories/froxlor-before-2.3.12-arbitrary-file-deletion-via-symlink","tags":[]},{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-px4q-2rf7-cvcf","tags":[]}],"exploitRefs":[{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-px4q-2rf7-cvcf","tags":[]},{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-px4q-2rf7-cvcf","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows an authenticated customer to plant a symlink in the FTP home directory, leading to arbitrary file deletion via the cron task. This can result in cross-tenant data destruction and host denial of service.","exploitability":"Exploitation is moderately hard as it requires an authenticated user with write access to the FTP home directory and timing to plant the symlink between task insertion and cron execution.","blast_radius":"The impact is high, as it can lead to cross-tenant data destruction and host denial of service.","remediation":"Upgrade to Froxlor 2.3.12 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","auth-bypass","cron","file-deletion","symlink"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-28T08:49:06.376Z"}}