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Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: A critical **Path Traversal** flaw in FileCatalyst Workflow Web Portal. ๐ Attackers bypass upload restrictions to place files outside the designated `uploadtemp` directory.โฆ
๐ก๏ธ **Root Cause**: **CWE-472** (External Control of Assumed Filename). ๐ **Flaw**: The application fails to properly sanitize file paths in POST requests.โฆ
๐ **Self-Check**: Scan for FileCatalyst Workflow Web Portal instances. ๐ก Look for the specific upload endpoint handling POST requests. ๐งช Test with a crafted path traversal payload (`../../../`).โฆ
๐ง **No Patch Workaround**: 1. **Block Access**: Restrict web portal access via Firewall/WAF to trusted IPs only. ๐ซ 2. **Disable Service**: If not needed, stop the Web Portal service. ๐ 3.โฆ
๐จ **Urgency**: **CRITICAL**. ๐ด **Priority**: **Immediate Action Required**. ๐ **CVSS**: 9.8 (Critical). ๐ **Action**: Patch immediately. Do not wait. The exploit is public and easy to use.โฆ