CVE-2026-100727 Missing authorization in GROWI
Unauthenticated attackers can read files from non-public pages in GROWI when local file uploads are enabled.
- 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-2026-100727?
CVE-2026-100727 is a medium-severity missing authorization vulnerability in GROWI, Inc. GROWI, published on 5 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An improper access control vulnerability exists in GROWI, which allow an unauthenticated attacker to read files contained in non-public pages of the affected product when the file upload setting is configured as "Local".
Weakness: CWE-552
Which versions are affected by CVE-2026-100727?
How do I fix CVE-2026-100727?
No fix has been published for CVE-2026-100727 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-2026-100727 being exploited?
There is no known exploitation of CVE-2026-100727 in the wild and no public exploit code.
Sources
Also known as GHSA-h2pc-3fh7-hv26.