Attack Chain

1. An unauthenticated attacker identifies a vulnerable endpoint in the Gravity Bookings Premium plugin that accepts user input.
2. The attacker crafts a malicious SQL query, embedding it within a legitimate-looking request to the vulnerable endpoint.
3. The crafted query exploits the lack of proper input sanitization to bypass security measures.
4. The injected SQL code is appended to the existing SQL query executed by the WordPress application.
5. The modified SQL query is executed against the WordPress database.
6. The injected SQL query extracts sensitive information, such as user credentials, booking details, or other confidential data.
7. The extracted data is returned to the attacker as part of the application’s response or through other channels, such as database logs.

Impact

Successful exploitation of this SQL Injection vulnerability (CVE-2026-1719) can lead to the exposure of sensitive data stored in the WordPress database. This may include user credentials, personal information, and booking details. An attacker could use this information to compromise user accounts, gain unauthorized access to the WordPress administration panel, or launch further attacks against the system. The number of affected websites is potentially significant, given the popularity of the Gravity Bookings Premium plugin.

Recommendation

• Upgrade the Gravity Bookings Premium plugin to the latest version (greater than 2.5.9) to patch CVE-2026-1719.
• Deploy the Sigma rule “Detect WordPress Gravity Bookings SQL Injection Attempt” to identify potential exploitation attempts in web server logs.
• Monitor web server logs for suspicious HTTP requests targeting the Gravity Bookings Premium plugin with potentially malicious SQL queries.