CVE-2021-48014 FineReport 9.0 Unauthenticated Path Traversal File Write via ReportServer

Critical 9.3 Published 22 Oct 2026 Updated 23 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2021-48014?

CVE-2021-48014 is a critical vulnerability in FanRuan FineReport, published on 22 Oct 2026.

Official description

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.

Weakness: CWE-22

Which versions are affected by CVE-2021-48014?

How do I fix CVE-2021-48014?

No fix has been published for CVE-2021-48014 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-48014 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-48014 exists.

Sources

Also known as GHSA-wxvw-chm6-9q9h.