CVE-2026-1487: LatePoint WordPress Plugin SQLi Vulnerability

CVE-2026-1487 Overview

The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to SQL Injection via the JSON Import functionality. This vulnerability affects all versions up to and including 5.2.7 and stems from insufficient validation on user-supplied JSON data. Authenticated attackers with Administrator-level access can execute arbitrary SQL queries against the database, enabling data extraction via time-based techniques, table manipulation, or data modification.

Critical Impact

Authenticated administrators can leverage the JSON Import feature to execute arbitrary SQL queries, potentially extracting sensitive database information, dropping tables, or modifying critical data within the WordPress installation.

Affected Products

• LatePoint – Calendar Booking Plugin for Appointments and Events for WordPress versions up to and including 5.2.7

Discovery Timeline

• 2026-03-03 - CVE-2026-1487 published to NVD
• 2026-03-03 - Last updated in NVD database

Technical Details for CVE-2026-1487

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists within the JSON Import functionality of the LatePoint plugin. The root issue lies in the plugin's failure to properly sanitize and validate user-supplied JSON data before incorporating it into SQL queries. When an authenticated administrator imports JSON data, the plugin processes this input without adequate parameterization or escaping, allowing malicious SQL statements to be injected and executed against the underlying WordPress database.

The network-accessible attack vector means exploitation can occur remotely, though it requires valid administrator credentials. The vulnerability primarily impacts data confidentiality and integrity, as attackers can extract sensitive information through time-based blind SQL injection techniques or directly manipulate database contents.

Root Cause

The vulnerability originates from insufficient input validation and sanitization within the JSON Import parsing logic. When processing imported JSON data, the plugin constructs SQL queries by directly incorporating unsanitized values from the JSON payload. This lack of prepared statements or proper escaping mechanisms allows attackers to break out of the intended query context and inject arbitrary SQL commands.

Attack Vector

An authenticated attacker with administrator privileges can craft a malicious JSON payload containing SQL injection payloads within data fields. When this payload is submitted through the JSON Import functionality, the injected SQL commands are executed against the database. Since direct query results may not be visible, attackers typically employ time-based blind SQL injection techniques—using functions like SLEEP() or BENCHMARK()—to extract data character by character based on response timing differences.

The attack flow involves:

1. Authenticating as a WordPress administrator
2. Navigating to the LatePoint plugin's JSON Import feature
3. Crafting a JSON payload with embedded SQL injection strings
4. Submitting the malicious import and observing database responses

Due to the nature of this vulnerability, technical exploitation details are not provided here. For more information on the specific injection points and remediation, refer to the Wordfence Vulnerability Report.

Detection Methods for CVE-2026-1487

Indicators of Compromise

• Unusual database query patterns or unexpected execution times in database logs
• Administrator accounts accessing JSON Import functionality with abnormal frequency
• Database error logs showing malformed SQL syntax or unexpected query structures
• Evidence of time-based delays in HTTP responses from import endpoints
• Unauthorized data modifications or missing database tables

Detection Strategies

• Monitor WordPress admin activity logs for suspicious JSON Import operations
• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in POST requests to LatePoint endpoints
• Review database query logs for time-based SQL injection indicators such as SLEEP(), BENCHMARK(), or WAITFOR DELAY functions
• Deploy intrusion detection systems configured to alert on anomalous database access patterns

Monitoring Recommendations

• Enable detailed WordPress audit logging for all administrator actions
• Configure database slow query logging to identify time-based injection attempts
• Implement real-time alerting for any access to the LatePoint JSON Import functionality
• Regularly audit administrator accounts and remove unnecessary elevated privileges

How to Mitigate CVE-2026-1487

Immediate Actions Required

• Update the LatePoint plugin to a version newer than 5.2.7 immediately
• Review WordPress administrator accounts and enforce principle of least privilege
• Audit database logs for signs of exploitation prior to patching
• Consider temporarily disabling the JSON Import feature if immediate patching is not possible
• Review and restore any database modifications if compromise is suspected

Patch Information

The vulnerability has been addressed in versions after 5.2.7. The fix can be reviewed in the WordPress Plugin Changeset 3463945. Site administrators should update to the latest available version of the LatePoint plugin through the WordPress plugin update mechanism.

Workarounds

• Restrict administrator access to only trusted personnel until patching is complete
• Disable the JSON Import functionality via plugin settings or code modification if available
• Implement additional Web Application Firewall rules to filter malicious payloads targeting the import endpoint
• Consider using WordPress security plugins that provide SQL injection protection at the application layer
• Limit database user privileges for the WordPress database connection to reduce the impact of successful exploitation

# WordPress CLI - Update LatePoint plugin to latest version
wp plugin update latepoint --allow-root

# Verify current plugin version
wp plugin get latepoint --field=version

# Backup database before any changes (recommended)
wp db export backup-before-update.sql