Vulnerability · Published Oct 6, 2026 · Assigned by Patchstack
CVE-2026-39764WordPress Radius Booking — Booking Calendar for Appointments & Services plugin <= 1.0.19 - SQL Injection vulnerability
Critical 9.3
In plain English
A critical-severity SQL injection in Radius Booking — Booking Calendar for Appointments & Services from RadiusTheme. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)9.3Critical
Exploit odds (30 days)0.3%top 79.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated SQL Injection in Radius Booking — Booking Calendar for Appointments & Services <= 1.0.19 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| RadiusTheme | Radius Booking — Booking Calendar for Appointments & Services | n/a – through 1.0.19 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L