CVE-2026-92997 Overview
CVE-2026-92997 is an unauthenticated SQL injection vulnerability in the Click n Chat (Chat Widget Integration) WordPress plugin versions before 1.1.3. The plugin fails to validate a user-supplied parameter before incorporating it as a column identifier in a SQL query. Unauthenticated attackers can inject arbitrary SQL fragments and extract data from the backend database. The weakness is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command.
Critical Impact
Unauthenticated attackers can inject SQL into the WordPress database over the network, with no user interaction, exposing stored data across the site.
Affected Products
- Click n Chat (Chat Widget Integration) WordPress plugin, all versions prior to 1.1.3
- WordPress installations running the vulnerable plugin
- Multi-site WordPress deployments sharing the affected plugin
Discovery Timeline
- 2026-10-21 - CVE-2026-92997 published to the National Vulnerability Database
- 2026-10-21 - Last updated in NVD database
Technical Details for CVE-2026-92997
Vulnerability Analysis
The Click n Chat plugin accepts a request parameter and passes it directly into a SQL statement as a column identifier. Column identifiers cannot be bound as prepared-statement parameters, so the plugin must allow-list acceptable values. The plugin omits this validation step, which allows attackers to influence the structure of the query itself.
Because the injection point sits in the identifier position rather than a value, standard quoting routines such as esc_sql() do not neutralize the attack. An attacker can supply crafted input to alter the selected column, append a UNION clause, or trigger error-based disclosure. The request requires no authentication and no user interaction.
The CVSS vector reports scope change with high confidentiality impact and no integrity or availability impact, consistent with read-oriented data exposure from the WordPress database. The EPSS probability is 0.262%.
Root Cause
The root cause is missing input validation on a column-identifier parameter prior to SQL query construction [CWE-89]. The plugin trusts attacker-controlled input to name a database column and concatenates it into the query string. Without an allow-list of permitted column names, arbitrary SQL fragments reach the database driver.
Attack Vector
The attack vector is network-based through standard HTTP(S) requests to the WordPress site hosting the vulnerable plugin. An attacker sends a crafted request containing SQL syntax in the vulnerable parameter. The server executes the altered query against the WordPress database. Technical details are available in the WPScan Vulnerability Report.
Detection Methods for CVE-2026-92997
Indicators of Compromise
- HTTP requests to Click n Chat plugin endpoints containing SQL keywords such as UNION, SELECT, SLEEP, or INFORMATION_SCHEMA in query parameters.
- Unexpected SELECT queries in MySQL slow query logs referencing non-standard column identifiers.
- Spikes in 500-series responses from WordPress endpoints associated with the plugin.
- Outbound data transfers from the web server following anomalous requests to plugin URLs.
Detection Strategies
- Inspect web server access logs for requests to Click n Chat plugin paths containing SQL metacharacters or encoded SQL payloads.
- Deploy web application firewall (WAF) rules that identify SQL injection patterns targeting WordPress plugin endpoints.
- Enable MySQL general query logging in staging to baseline legitimate plugin queries and alert on deviations.
- Correlate authentication-free requests to plugin endpoints with database read volume anomalies.
Monitoring Recommendations
- Monitor the plugin's registered AJAX and REST endpoints for traffic from unauthenticated sources.
- Alert on repeated requests from a single source IP targeting the plugin within short time windows.
- Track outbound traffic from the WordPress host for signs of database content exfiltration.
How to Mitigate CVE-2026-92997
Immediate Actions Required
- Upgrade the Click n Chat (Chat Widget Integration) WordPress plugin to version 1.1.3 or later immediately.
- Audit WordPress sites across the estate to identify installations running vulnerable plugin versions.
- Review web server and database logs for prior exploitation attempts targeting the affected endpoints.
- Rotate WordPress administrator credentials and database passwords if evidence of exploitation is found.
Patch Information
The vendor addressed the issue in Click n Chat version 1.1.3. Administrators should update through the WordPress plugin dashboard or by replacing plugin files from the official repository. See the WPScan Vulnerability Report for advisory details.
Workarounds
- Deactivate and remove the Click n Chat plugin until the site can be upgraded to version 1.1.3.
- Deploy a WAF rule blocking SQL metacharacters in requests to the plugin's endpoints.
- Restrict access to the WordPress site using IP allow-listing where feasible until patching is complete.
# Update Click n Chat plugin via WP-CLI
wp plugin update click-n-chat --version=1.1.3
wp plugin list --name=click-n-chat --fields=name,status,version
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
