CVE-2026-116827 YesWiki before 4.7.0 SSRF via copyUrlToLocalFile in Bazar CSV Import
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116827?
CVE-2026-116827 is a high-severity vulnerability in yeswiki, published on 26 Oct 2026.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-116827?
How do I fix CVE-2026-116827?
No fix has been published for CVE-2026-116827 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116827 being exploited?
There is no known exploitation of CVE-2026-116827 in the wild and no public exploit code.
Sources
Also known as GHSA-fcvr-25qj-4jg8, GHSA-v38g-qc7g-q3mq.