CVE-2026-53620 Missing authorization in GROWI
An authenticated attacker can bypass authorization to read, modify, or delete other users' bookmark data in GROWI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-53620?
CVE-2026-53620 is a medium-severity missing authorization vulnerability in GROWI, Inc. GROWI, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-53620?
How do I fix CVE-2026-53620?
No fix has been published for CVE-2026-53620 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-2026-53620 being exploited?
There is no known exploitation of CVE-2026-53620 in the wild and no public exploit code.
Sources
Also known as GHSA-xwvv-h48v-hrrm.