CVE-2026-100716

9.9 CRITICALpublic exploit available

Published 2026-09-26 · Updated 2026-09-28

AI risk analysis

Summary: The flaw allows an authenticated customer to exploit a symlink race condition to gain host root and cross-tenant access, due to improper path validation in the data export feature.
Exploitability: Exploitation is deterministic and requires no race condition, making it relatively easy for an attacker with the necessary permissions to execute.
Blast radius: If exploited, the attacker can gain full control over the host system and potentially compromise other tenant accounts, leading to significant damage.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to Froxlor 2.3.12 or later.

auth-bypassrcewebpath-traversal

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-59

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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