CVE-2026-64636 SQL injection in Plesk
An authenticated user can exploit SQL injection in Plesk to read arbitrary data from the panel database.
- 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-2026-64636?
CVE-2026-64636 is a high-severity SQL injection vulnerability in WebPros Plesk, published on 7 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An SQL injection vulnerability in Plesk Obsidian up to 18.0.80 for Linux and Windows allows an authenticated user to read arbitrary data from the panel database.
Weakness: CWE-89
Which versions are affected by CVE-2026-64636?
How do I fix CVE-2026-64636?
No fix has been published for CVE-2026-64636 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-64636 being exploited?
There is no known exploitation of CVE-2026-64636 in the wild and no public exploit code.
Sources
Also known as GHSA-j4xg-65wf-c7hr.