CVE-2026-116826

YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFile

State: Published
Severity: 8.2 High
Published: Oct 26, 2026
Updated: Oct 27, 2026
Reserved: Oct 26, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.2 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N	VulnCheck
3.1	6.8 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
yeswikiYesWiki	before 4.7.0Affected 4.7.0Not affected

References

GitHub Security Advisory (GHSA-qmpm-85pr-3qq8)vendor-advisory
VulnCheck Advisory: YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFilethird-party-advisory

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