Vulnerability · Published Oct 28, 2026 · Assigned by jpcert
CVE-2026-109848
Medium 4.2
In plain English
A medium-severity authorization bypass via user-controlled key in GROWI from GROWI, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Official description
GROWI contains an authorization bypass vulnerability in its tag update API and the page update API due to improper use of a user-controlled key. By exploiting this vulnerability, an attacker who can log in to the product may obtain the contents of pages without the required read permission and save them to pages that the attacker can edit.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GROWI, Inc. | GROWI | v4.5.5 – through v8.0.6 |
Weakness: CWE-639 · Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N