{"id":"CVE-2021-48013","title":"Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload","summary":"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 d…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"Weaver Network Co., Ltd.","product":"E-cology","affected":["E-cology 8.0"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T10:57:29.018Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-48013","references":[{"url":"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","label":"PeiQi Wiki GitHub Exploit"},{"url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/weaver/ecology/ecology-filedownload-directory-traversal.yaml","label":"Nuclei Template"},{"url":"https://www.vulncheck.com/advisories/weaver-e-cology-8.0-unauthenticated-path-traversal-via-ln-filedownload","label":"VulnCheck Advisory: Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T11:37:02.343Z","slug":"CVE-2021-48013","body":"## Overview\n\nWeaver 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.\n\n## Affected\n\n- `E-cology 8.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}