{"id":"CVE-2021-48013","revision":null,"records":[{"revision":"190f8df9bb9942a18f74caafb6e69b0e","observedAt":"2026-10-29T13:12:12.589+00:00","statement":{"source":"cve-program","id":"CVE-2021-48013","aliases":[],"title":"Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload","description":"Weaver E-cology 8.0 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files through the fpath parameter of the /weaver/ln.FileDownload endpoint. Attackers can send crafted GET requests with directory traversal sequences in fpath to retrieve sensitive files such as WEB-INF/web.xml from the server. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.","state":0,"publishedAt":"2026-10-22T10:57:29.018+00:00","modifiedAt":"2026-10-29T11:13:18.528+00:00","affected":[{"ecosystem":"Vendor product","name":"E-cology","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unknown\",\n                    \"vendor\": \"Weaver Network Co., Ltd.\",\n                    \"product\": \"E-cology\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/wiki/oa/%E6%B3%9B%E5%BE%AEOA/%E6%B3%9B%E5%BE%AEOA%20E-Weaver%20ln.FileDownload%20%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/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/weaver/ecology/ecology-filedownload-directory-traversal.yaml","https://www.vulncheck.com/advisories/weaver-e-cology-8.0-unauthenticated-path-traversal-via-ln-filedownload"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-48013","license":"CVE Program Terms of Use","key":"cve-program:CVE-2021-48013","identifiers":["CVE-2021-48013"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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