CVE-2026-108497 Overview
CVE-2026-108497 is a SQL injection vulnerability in the TMS Amelia (ameliabooking) WordPress plugin. The flaw affects all versions up to and including 2.4.10. It arises from improper neutralization of special elements used in SQL commands, classified as [CWE-89]. Unauthenticated remote attackers can craft malicious input that the plugin passes directly into database queries. Because the attack vector is network-based and requires no privileges or user interaction, exploitation can be fully automated against exposed WordPress sites running the plugin. The vulnerability was published to the National Vulnerability Database (NVD) on 2026-10-15.
Critical Impact
Unauthenticated attackers can inject SQL statements through the Amelia booking plugin, exposing confidential database content and enabling scope-changing attacks across the WordPress environment.
Affected Products
- TMS Amelia (ameliabooking) WordPress plugin — all versions through 2.4.10
- WordPress sites using Amelia for appointment and event booking workflows
- Shared databases accessed by the plugin's database user context
Discovery Timeline
- 2026-10-15 - CVE-2026-108497 published to NVD
- 2026-10-16 - Last updated in NVD database
Technical Details for CVE-2026-108497
Vulnerability Analysis
The Amelia plugin accepts user-supplied input and incorporates it into SQL statements without adequate sanitization or parameterization. An attacker can place SQL metacharacters and clauses into a vulnerable parameter, altering the structure of the backend query. Because the scope component indicates a change beyond the vulnerable component, injected SQL can reach resources that the plugin itself does not directly manage, including other data stored in the same database.
The ameliabooking plugin exposes booking, service, and appointment endpoints accessible to unauthenticated visitors. These endpoints are the most likely entry points for exploitation, since the vulnerability does not require authentication or elevated privileges.
Root Cause
The root cause is improper neutralization of special characters in input used to construct SQL commands [CWE-89]. The affected code paths concatenate request parameters into queries rather than using prepared statements with bound parameters. Standard WordPress helpers such as $wpdb->prepare() were either bypassed or applied inconsistently in the vulnerable call sites.
Attack Vector
An attacker sends an HTTP request to a vulnerable Amelia endpoint, embedding SQL payloads in a susceptible parameter. The server executes the modified query, returning data through error messages, response differentials, or time-based side channels. Successful exploitation enables extraction of sensitive data from the WordPress database, including user records, booking information, and configuration values. See the Patchstack advisory for additional technical references.
Detection Methods for CVE-2026-108497
Indicators of Compromise
- Unusual HTTP requests to /wp-admin/admin-ajax.php or Amelia REST endpoints containing SQL metacharacters such as UNION, SELECT, SLEEP(, or encoded variants.
- Spikes in database query latency or error logs referencing malformed SQL from the WordPress database user.
- Outbound requests from the web server shortly after suspicious Amelia requests, suggesting data exfiltration.
Detection Strategies
- Deploy web application firewall (WAF) rules that inspect Amelia plugin parameters for SQL injection payloads and boolean/time-based patterns.
- Enable MySQL general query logging or slow query logging during incident response to correlate anomalous queries with HTTP access logs.
- Monitor PHP error logs for WP_Error or wpdb database errors originating from Amelia request handlers.
Monitoring Recommendations
- Baseline normal request patterns to Amelia endpoints and alert on parameter length, entropy, or keyword anomalies.
- Forward WordPress, web server, and database logs to a centralized analytics platform to correlate injection attempts with database behavior.
- Track plugin version inventory across WordPress sites and alert when installations remain on 2.4.10 or earlier.
How to Mitigate CVE-2026-108497
Immediate Actions Required
- Update the Amelia (ameliabooking) plugin to the latest fixed release above 2.4.10 as published by TMS.
- Audit WordPress database users for signs of unauthorized SELECT, INSERT, or UPDATE activity against Amelia tables and wp_users.
- Rotate WordPress administrator credentials and secret keys if evidence of exploitation exists.
Patch Information
TMS has issued a patched version of the Amelia plugin addressing CVE-2026-108497. Site operators should consult the Patchstack advisory and the vendor changelog to confirm the fixed version and apply updates through the WordPress plugin dashboard or wp-cli.
Workarounds
- Temporarily deactivate the Amelia plugin on internet-facing sites until the patched version is installed.
- Apply virtual patching through a WAF to block SQL injection payloads targeting Amelia parameters.
- Restrict the WordPress database account to the minimum privileges required, limiting lateral impact of successful injection.
# Update Amelia plugin via wp-cli to the latest patched release
wp plugin update ameliabooking --path=/var/www/html
wp plugin get ameliabooking --field=version
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
