CVE-2026-116827

MEDIUM 6.8

YesWiki before 4.7.0 SSRF via copyUrlToLocalFile in Bazar CSV Import

CVSS Score

6.8

EPSS Score

0.0%

EPSS Percentile

0th

YesWiki before 4.7.0 contains a server-side request forgery vulnerability in the Bazar CSV import copyUrlToLocalFile() function that allows authenticated administrators to make arbitrary outbound requests by supplying crafted URLs in CSV file or image fields. Attackers can bypass the extension check with a query-string suffix or redirects to fetch cloud metadata credentials, internal services, or local files via file://, with responses stored in the web-accessible files/ directory.

CWE	CWE-918
Vendor	yeswiki
Product	yeswiki
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

YesWiki / yeswiki

0 < 4.7.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/YesWiki/yeswiki/security/advisories/GHSA-v38g-qc7g-q3mq vulncheck.com: https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-ssrf-via-copyurltolocalfile-in-bazar-csv-import

Credits

🔍 manus-pi 🔍 manus-use