Path traversal in FanRuan FineReport lets attackers write files
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
FanRuan FineReport from version 9.0 contains a path traversal flaw in the design_save_svg operation of /WebReport/ReportServer, tracked as CWE-22. An unauthenticated remote attacker can write arbitrary files through the filePath parameter, which allows writing a JSP webshell and achieving remote code execution. A public exploit is linked in the references, and exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
FineReport 9.0 contains a path traversal vulnerability in the /WebReport/ReportServer design_save_svg operation that allows unauthenticated attackers to write arbitrary files via the filePath parameter. Attackers can send a POST request with directory traversal sequences in filePath and a __CONTENT__ payload to write a JSP webshell and achieve remote code execution. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for FineReport.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-22 Threatist record created from CVE-2021-48014
- 2026-10-22 Alias added: GHSA-wxvw-chm6-9q9h
- 2026-10-23 CISA SSVC decision points changed
- 2026-10-24 Priority changed: MEDIUM → HIGH
References
Sources
- CVE-2021-48014 · CVE Program
- CVE-2021-48014 · NVD
- FIRST EPSS
- GHSA-wxvw-chm6-9q9h · GitHub Advisory Database · CC BY 4.0
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