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PatchSiren cyber security CVE debrief

CVE-2021-48015 erzhongxmu CVE debrief

JeeWMS before commit 0a610e8 contains an unauthenticated path traversal vulnerability that allows remote attackers to read arbitrary files via the dbPath parameter in showOrDownByurl.do. The vulnerability was first observed by the Shadowserver Foundation on 2023-10-17. Defenders should assess exposure and prioritize patching or mitigation. AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-10-22T10:57:30.531Z and has not been modified since then. The vulnerability affects JeeWMS instances with publicly accessible showOrDownByurl.do endpoints.

Vendor
erzhongxmu
Product
JeeWMS
CVSS
HIGH 8.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-22
Original CVE updated
2026-10-22
Advisory published
2026-10-22
Advisory updated
2026-10-22

Who should care

Defenders responsible for JeeWMS instances, especially those with publicly accessible showOrDownByurl.do endpoints, should assess exposure and prioritize patching or mitigation. Defenders should also verify exposure of JeeWMS instances and apply patches or mitigations as available. Additionally, defenders should monitor for suspicious activity on showOrDownByurl.do endpoints and restrict access to showOrDownByurl.do to authenticated users only.

Why it matters

CVE-2021-48015 allows unauthenticated attackers to read arbitrary files via a path traversal vulnerability in JeeWMS. Defenders should verify exposure, prioritize patching, and monitor for suspicious activity.

  • Verify exposure of JeeWMS instances to unauthenticated file reads
  • Assess potential for data breaches or system compromise
  • Prioritize patching or mitigation of vulnerable JeeWMS instances
  • Monitor for suspicious activity on showOrDownByurl.do endpoints

Technical summary

JeeWMS before commit 0a610e8 contains an unauthenticated path traversal vulnerability that allows remote attackers to read arbitrary files via the dbPath parameter in showOrDownByurl.do. The vulnerability was first observed by the Shadowserver Foundation on 2023-10-17. Attackers can send GET requests to /systemController/showOrDownByurl.do with ../ sequences in dbPath, which bypasses AuthInterceptor, to retrieve files like win.ini. Defenders should verify exposure of JeeWMS instances, especially those with publicly accessible showOrDownByurl.do endpoints, and apply patches or mitigations as available.

Defensive priority

Defenders should prioritize verifying exposure of JeeWMS instances, especially those with publicly accessible showOrDownByurl.do endpoints, and apply patches or mitigations as available.

Recommended defensive actions

  • Verify exposure of JeeWMS instances, especially those with publicly accessible showOrDownByurl.do endpoints
  • Apply patches or mitigations as available, referencing the fix commit
  • Monitor for suspicious activity on showOrDownByurl.do endpoints
  • Restrict access to showOrDownByurl.do to authenticated users only
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the path traversal vulnerability in JeeWMS, including exploitation evidence from the Shadowserver Foundation on 2023-10-17. However, the corpus lacks specific information on affected versions and remediation beyond a fix commit.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-48015 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-48015

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2021-48015 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-48015

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • JeeWMS Path Traversal via showOrDownByurl.do

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2021/48xxx/CVE-2021-48015.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: 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

    Supplemental source - technical-description, exploit

  • Source reference

    Unverified legacy reference

    URL: 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

    Supplemental source - exploit

  • Source reference

    Unverified legacy reference

    URL: https://github.com/erzhongxmu/JeeWMS/commit/0a610e8178a0a1197e9c6615b58faf67c406d2bc

    Supplemental source - patch

  • Source reference

    Unverified legacy reference

    URL: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/jeewms-lfi.yaml

    Supplemental source - technical-description

  • Source reference

    Unverified legacy reference

    URL: https://www.vulncheck.com/advisories/jeewms-path-traversal-via-showordownbyurl-do

    Supplemental source - third-party-advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.