{"id":"CVE-2026-116826","title":"YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFile","summary":"YesWiki before 4.7.0 contains a server-side request forgery vulnerability in DuplicationManager::downloadFile() that allows authenticated administrators to make arbitrary outbound requests via the files array. Attackers can POST file:// …","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-918"],"vendor":"YesWiki","product":"yeswiki","affected":["yeswiki < 4.7.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-27T13:42:16.595290Z"},"published":"2026-10-26","updated":"2026-10-27","sourceUpdated":"2026-10-27T14:15:19.006Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116826","references":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-qmpm-85pr-3qq8","label":"GitHub Security Advisory (GHSA-qmpm-85pr-3qq8)"},{"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-authenticated-ssrf-via-page-duplication-api-downloadfile","label":"VulnCheck Advisory: YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFile"}],"tags":["cve.org"],"epss":0.00241,"epssPercentile":0.15158,"ingestedAt":"2026-10-27T16:11:59.447Z","slug":"CVE-2026-116826","body":"## Overview\n\nYesWiki before 4.7.0 contains a server-side request forgery vulnerability in DuplicationManager::downloadFile() that allows authenticated administrators to make arbitrary outbound requests via the files array. Attackers can POST file:// or internal URLs to /api/pages/{tag}/duplicate, storing local files, cloud metadata, or database credentials in the publicly accessible files/ directory.\n\n## Affected\n\n- `yeswiki < 4.7.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}