{"api_version":"1","generated_at":"2026-09-26T17:29:27+00:00","cve":"CVE-2026-100714","urls":{"html":"https://cve.report/CVE-2026-100714","api":"https://cve.report/api/cve/CVE-2026-100714.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-100714","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100714"},"summary":{"title":"Froxlor before 2.3.12 Command Injection via letsencryptchallengepath","description":"Froxlor before 2.3.12 does not restrict or escape the system.letsencryptchallengepath setting: unlike sibling settings hardened in GHSA-33mp, the field has no string_regexp or required_otp guard, and its value is concatenated unescaped into the acme.sh command line built in lib/Froxlor/Cron/Http/LetsEncrypt/AcmeSh.php and executed by the root cron via FileDir::safe_exec. Because safe_exec only blacklists shell metacharacters such as ; | & > < \\ $ ~ ?, spaces and quotes survive and the value is word-split into additional acme.sh arguments. An administrator, or any actor able to write settings (for example through the settings-import API), can therefore inject acme.sh options such as --renew-hook, --pre-hook or --post-hook to obtain arbitrary command execution as root at the next Let's Encrypt cron run, or use --config-home/--cert-home for arbitrary file writes. Versions up to and including 2.3.10 are affected; the issue is fixed in 2.3.12.","state":"PUBLISHED","assigner":"VulnCheck","published_at":"2026-09-26 14:16:57","updated_at":"2026-09-26 14:16:57"},"problem_types":["CWE-88","CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument 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before 2.3.12 Command Injection via letsencryptchallenge","CVE":"CVE-2026-100714","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"100714","Ordinal":"1","NoteData":"Froxlor before 2.3.12 does not restrict or escape the system.letsencryptchallengepath setting: unlike sibling settings hardened in GHSA-33mp, the field has no string_regexp or required_otp guard, and its value is concatenated unescaped into the acme.sh command line built in lib/Froxlor/Cron/Http/LetsEncrypt/AcmeSh.php and executed by the root cron via FileDir::safe_exec. 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