CVE-2026-116826
Deferred Deferred - Pending Action

Server-Side Request Forgery in YesWiki Prior to 4.7.0

Vulnerability report for CVE-2026-116826, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: VulnCheck

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
YesWiki yeswiki 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

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