{"id":"CVE-2021-48013","aliases":["EUVD-2021-34896","GHSA-ggh3-mmrr-r9c4"],"status":"published","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.","severity":{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00736,"percentile":0.54902,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-10-22T10:57:29Z","modified":"2026-10-29T12:17:08Z","products":[{"vendor":"weaver network co., ltd.","product":"e-cology"}],"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","tags":["technical-description","exploit"]},{"url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/weaver/ecology/ecology-filedownload-directory-traversal.yaml","tags":["technical-description"]},{"url":"https://www.vulncheck.com/advisories/weaver-e-cology-8.0-unauthenticated-path-traversal-via-ln-filedownload","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-48013"},{"url":"https://github.com/advisories/GHSA-ggh3-mmrr-r9c4"}],"sources":{"cve":[{"id":"CVE-2021-48013","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.","status":"published","published":"2026-10-22T10:57:29.018Z","modified":"2026-10-29T11:13:18.528Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-34896","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.","status":"published","published":"2026-10-22T10:57:29Z","modified":"2026-10-29T11:13:18Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"updated_at":"2026-11-02T16:59:17.279653Z"}],"ghsa":[{"id":"GHSA-ggh3-mmrr-r9c4","title":"Weaver E-cology 8.0 contains a path traversal vulnerability that allows unauthenticated attackers...","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.","status":"published","published":"2026-10-22T12:31:14Z","modified":"2026-10-22T12:31:19Z","cvss":[{"version":"4.0","score":8.7,"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/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","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:14:15.712154Z"}],"nvd":[{"id":"CVE-2021-48013","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.","status":"published","published":"2026-10-22T11:17:04.25Z","modified":"2026-10-29T12:17:08.39Z","cvss":[{"version":"4.0","score":8.7,"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/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","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:07:09.005706Z"}]}}