CVE-2026-65642 Missing authorization in Plesk
Authenticated attackers can access and modify other customers' databases due to insecure direct object references in Plesk.
- 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-2026-65642?
CVE-2026-65642 is a high-severity missing authorization vulnerability in WebPros Plesk, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Insecure direct object reference in Plesk 18.0.79.7 and earlier or 18.0.80 through 18.0.80.3, allows remote authenticated users to read and modify other customers' databases.
Weakness: CWE-639
Which versions are affected by CVE-2026-65642?
How do I fix CVE-2026-65642?
No fix has been published for CVE-2026-65642 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-2026-65642 being exploited?
There is no known exploitation of CVE-2026-65642 in the wild and no public exploit code.
Sources
Also known as GHSA-cxvf-wcrg-rcp2.