Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck
CVE-2026-104471YesWiki before 4.6.7 Unrestricted File Upload via Bazar CSV Import
High 7.2
In plain English
A high-severity unrestricted file upload in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.4%top 68.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
YesWiki before 4.6.7 contains an unrestricted file upload vulnerability that allows authenticated admins to write remote files into the web-accessible files/ directory via Bazar CSV import preview. Attackers can import a CSV whose file or image field references a remote .php URL, which is saved without extension checks and executed as server-side code.
Affected products (as reported)
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-v3gq-c7c6-mxw3) vendor-advisory
- VulnCheck Advisory: YesWiki before 4.6.7 Unrestricted File Upload via Bazar CSV Import third-party-advisory