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CVE-2026-116826VulnerabilityPublished

YesWiki before 4.7.0 contains a server-side request forgery vulnerability in DuplicationManager::downloadFile() that

Affects yeswikiSource GCVE Database

0
Authoritative record:CVE-2026-116826· High 8.2

Not known to be exploited · CVSS 8.2 High : upgrade to 4.7.0 soon.

Data as of 27 Oct 2026, 01:59 UTC

CVSS 4.0 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.7.0
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade yeswiki/yeswiki to 4.7.0.

Affected software

ProductAffectedFixed in
GitHubyeswiki/yeswikipkg:github/yeswiki/yeswikiOther threatsAffected
  • <4.7.0
Fixed in
  • 4.7.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fixed version 4.7.0 or later should be applied once available. Until then, restrict administrator access to trusted users only and monitor for suspicious activity related to the /api/pages/{tag}/duplicate endpoint.

Description

YesWiki versions prior to 4.7.0 have a server-side request forgery (SSRF) vulnerability in the DuplicationManager::downloadFile() function. This flaw allows authenticated administrators to send arbitrary outbound requests by manipulating the files array. Exploitation can lead to attackers posting file:// or internal URLs to the /api/pages/{tag}/duplicate endpoint, resulting in local files, cloud metadata, or database credentials being stored in a publicly accessible directory.

References

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