CVE-2026-39764 WordPress Radius Booking — Booking Calendar for Appointments & Services plugin <= 1.0.19 - SQL Injection vulnerability
Unauthenticated attackers can execute arbitrary SQL commands via the Radius Booking WordPress plugin, potentially accessing or modifying database content.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-39764?
CVE-2026-39764 is a critical SQL injection vulnerability in RadiusTheme Radius Booking — Booking Calendar for Appointments & Services, published on 6 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unauthenticated SQL Injection in Radius Booking — Booking Calendar for Appointments & Services <= 1.0.19 versions.
Weakness: CWE-89
Which versions are affected by CVE-2026-39764?
How do I fix CVE-2026-39764?
No fix has been published for CVE-2026-39764 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-2026-39764 being exploited?
There is no known exploitation of CVE-2026-39764 in the wild and no public exploit code.
Sources
Also known as GHSA-frjh-c87p-5c68.