Vulnerability · Published Oct 22, 2026 · Assigned by VulnCheck

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

Critical 9.8

In plain English

A critical-severity path traversal in FineReport from FanRuan. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)2.0%top 18.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
FanRuan	FineReport	9.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

GitHub Python Script exploit
PeiQi Wiki GitHub Exploit exploit, technical-description
Nuclei Template technical-description
Product Webpage product
VulnCheck Advisory: FineReport 9.0 Unauthenticated Path Traversal File Write via ReportServer third-party-advisory