Vulnerability · Published Aug 31, 2026 · Assigned by jpcert
CVE-2026-53620
Medium 6.3
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 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.0)6.3Medium
Exploit odds (30 days)0.3%top 78.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
GROWI contains a vulnerability with an authorization bypass through user-controlled key in the bookmark folder APIs. If this vulnerability is exploited, an authenticated attacker could retrieve, tamper with, and/or delete the other user's bookmark data.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GROWI, Inc. | GROWI | 0 – through v8.0.0 |
Weakness: CWE-639 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L