Medium 6.8Published Oct 26, 2026

CVE-2026-116826YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFile

Updated under an hour ago (Oct 29, 2026, 4:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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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:// or internal URLs to /api/pages/{tag}/duplicate, storing local files, cloud metadata, or database credentials in the publicly accessible files/ directory.

CVSS: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 27, 2026
First seen by InfoSec Signals: Oct 26, 2026

Affected products

Affected products

YesWiki yeswiki yeswiki:yeswiki (from the name)	before 4.7.0; 4.7.0 not affected	CNA record

References

References

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-qmpm-85pr-3qq8	vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-authenticated-ssrf-via-page-duplication-api-downloadfile	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.