Path Traversal Vulnerability in FineReport 9.0 by Fanruan
CVE-2021-48014

9.3CRITICAL

Key Information:

Vendor

Fanruan

Status
Finereport
Vendor
CVE Published:
22 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-48014?

FineReport 9.0 has a path traversal vulnerability in the /WebReport/ReportServer design_save_svg operation, which could allow unauthorized attackers to write arbitrary files through the filePath parameter. By manipulating this parameter in a POST request, attackers can inject directory traversal sequences, opening the door to potential remote code execution. This flaw was highlighted by the Shadowserver Foundation when exploitation attempts were first recorded on October 14, 2023.

Affected Version(s)

FineReport 9.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-48014 - Proof of Concept

CVE-2021-48014 - Proof of Concept

References

https://github.com/NHPT/WebReportV9Exp/blob/main/WebRepor...
exploit
https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/...
exploittechnical-description
https://github.com/projectdiscovery/nuclei-templates/blob...
technical-description

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

The Shadowserver Foundation
.