What is CVE-2026-53620?

CVE-2026-53620 is a medium-severity vulnerability in Growi, Inc. Growi, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.3/10. Published 2026-08-31.

How severe is CVE-2026-53620?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Growi, Inc. Growi

CVE-2026-53620

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (20.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Growi, Inc. Growi

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2026-53620?: CVE-2026-53620 is a medium-severity vulnerability in Growi, Inc. Growi, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.3/10. Published 2026-08-31.
How severe is CVE-2026-53620?: Medium severity. CVSS v3 base score is 6.3 out of 10.