CVE-2026-40766 WordPress MasterStudy LMS plugin <= 3.7.25 - SQL Injection vulnerability
A subscriber can exploit SQL injection in MasterStudy LMS to read or modify database contents, requiring an upgrade to the latest version.
- 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-2026-40766?
CVE-2026-40766 is a high-severity SQL injection vulnerability in StylemixThemes MasterStudy LMS, published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Subscriber SQL Injection in MasterStudy LMS <= 3.7.25 versions.
Weakness: CWE-89
Which versions are affected by CVE-2026-40766?
How do I fix CVE-2026-40766?
No fix has been published for CVE-2026-40766 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-2026-40766 being exploited?
There is no known exploitation of CVE-2026-40766 in the wild and no public exploit code.
Sources
Also known as GHSA-5px8-h7w4-rhfc.