CVE-2021-48014

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.

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

• https://github.com/NHPT/WebReportV9Exp/blob/main/WebReport_Exp.py
• https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/wiki/oa/%E5%B8%86%E8%BD%AFOA/%E5%B8%86%E8%BD%AF%E6%8A%A5%E8%A1%A8%20V9%20design_save_svg%20%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%A6%86%E7%9B%96%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0.md
• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/finereport/fine-report-v9-file-upload.yaml
• https://www.fanruan.com/en/finereport
• https://www.vulncheck.com/advisories/finereport-9.0-unauthenticated-path-traversal-file-write-via-reportserver