CVE-2026-104472 YesWiki before 4.6.7 Missing Authorization via Attachment Download Handler
Unauthenticated attackers can bypass page read ACLs to retrieve confidential attachments from restricted pages in YesWiki.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104472?
CVE-2026-104472 is a high-severity missing authorization vulnerability in yeswiki, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
YesWiki before 4.6.7 contains a missing authorization vulnerability in the attachment download handler that allows unauthenticated attackers to bypass page read ACLs. Attackers can request the download handler with a known page tag and file parameter to retrieve confidential attachments from read-restricted pages.
Weakness: CWE-862
Which versions are affected by CVE-2026-104472?
How do I fix CVE-2026-104472?
No fix has been published for CVE-2026-104472 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-104472 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-104472 exists.
Sources
Also known as GHSA-7cj2-9pgf-vcw2, GHSA-m45w-rvq4-f22g.