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

Status: published. Published: 2026-10-22. Updated: 2026-11-05.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/erzhongxmu/JeeWMS/commit/0a610e8178a0a1197e9c6615b58faf67c406d2bc

## Affected products and versions

- erzhongxmu / JeeWMS (erzhongxmu/JeeWMS): ≥ 194f221776cfcfd838abab7107b1a8352ea2bc59; < 0a610e8178a0a1197e9c6615b58faf67c406d2bc (affected, git). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); 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; source: CNA: VulnCheck

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 8.7 (high); 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.56% as of 2026-11-05; percentile 46.94%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

- exploit: 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 (CNA: VulnCheck)
- exploit: 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 (CNA: VulnCheck)

## 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 (CNA: VulnCheck; technical-description, exploit)

- 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 (CNA: VulnCheck; exploit)

- https://github.com/erzhongxmu/JeeWMS/commit/0a610e8178a0a1197e9c6615b58faf67c406d2bc (CNA: VulnCheck; patch)

- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/jeewms-lfi.yaml (CNA: VulnCheck; technical-description)

- https://www.vulncheck.com/advisories/jeewms-path-traversal-via-showordownbyurl-do (CNA: VulnCheck; third-party-advisory)

- 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 (disclosure@vulncheck.com)

- https://github.com/erzhongxmu/JeeWMS/commit/0a610e8178a0a1197e9c6615b58faf67c406d2bc (disclosure@vulncheck.com)

- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/jeewms-lfi.yaml (disclosure@vulncheck.com)

- 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 (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/jeewms-path-traversal-via-showordownbyurl-do (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2021-48015; retrieved 2026-11-05; source updated 2026-11-05

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-48015; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2021-48015; retrieved 2026-11-05; source updated Not reported

Revision: 758644db1ed99e5531e4aec993ea577628ced4677657f069f727c28d8d0cf06c

Canonical: https://y2.dev/cve/CVE-2021-48015

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.