{"id":"CVE-2020-37278","published":"2026-10-02T19:16:38.703","lastModified":"2026-10-06T16:08:43.180","description":"Weaver e-Bridge contains an unauthenticated arbitrary file read vulnerability that allows remote attackers to access arbitrary files on the host system by supplying a file: URL to the downloadUrl parameter of the saveYZJFile endpoint. Attackers can exploit this flaw to read sensitive files such as /etc/passwd or configuration and credential files, and the same endpoint's support for http(s) URLs also enables server-side request forgery against internal network resources. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-17.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/weaver/weaver-ebridge-lfi.yaml","tags":[]},{"url":"https://www.vulncheck.com/advisories/weaver-e-bridge-unauthenticated-arbitrary-file-read-via-saveyzjfile","tags":[]},{"url":"https://www.weaver.com.cn/cs/ebridge_full_log_en.html","tags":[]}],"exploitRefs":[{"url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/weaver/weaver-ebridge-lfi.yaml","tags":[]}],"hasPoc":true,"ai":{"summary":"Weaver e-Bridge suffers from an unauthenticated arbitrary file read vulnerability that allows remote attackers to access sensitive files on the host system and potentially perform server-side request forgery against internal resources.","exploitability":"The vulnerability is easily exploitable with no authentication required, simply by sending a file: URL to the saveYZJFile endpoint, making it highly attractive for automated attacks.","blast_radius":"The impact could be significant as attackers can read system files like /etc/passwd and configuration files containing credentials, potentially leading to further compromise of internal systems through SSRF.","remediation":"Upgrade to version 2.590 or later to address this vulnerability.","detection":"Monitor network traffic for requests to the saveYZJFile endpoint with file: URLs in the downloadUrl parameter, and look for unusual file access patterns in system logs.","tags":["file-read","ssrf","web","ics"],"model":"garnet-coder","analyzedAt":"2026-10-12T09:02:25.313Z"}}