All vulnerabilities
CVE-2026-116827GHSA-v38g-qc7g-q3mq

YesWiki before 4.7.0 SSRF via copyUrlToLocalFile in Bazar CSV Import

YesWiki yeswiki
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in4.7.0Fixed versionCVE List
Published26 Oct 2026Updated 26 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 2

  • yeswikiaffected: all versions before 4.7.0CVE List
  • yeswikiunaffected: 4.7.0CVE List

References 2