CVE-2026-12983: Dinatur WordPress Plugin SQLi Vulnerability

CVE-2026-12983 Overview

CVE-2026-12983 affects the Dinatur WordPress plugin through version 1.18. The plugin fails to sanitize and escape user input before using it in a SQL query, exposing the site to unauthenticated SQL injection [CWE-89]. The same vulnerable handler also performs a database table truncation without any authorization check. Unauthenticated visitors can wipe the plugin's data by invoking the endpoint directly.

Critical Impact
Unauthenticated attackers can extract data from the WordPress database through SQL injection and destroy Dinatur plugin data through unauthorized table truncation.

Affected Products

Dinatur WordPress plugin versions up to and including 1.18
WordPress sites with the Dinatur plugin installed and active
All hosting environments running the vulnerable plugin version

Discovery Timeline

2026-08-19 - CVE-2026-12983 published to NVD
2026-08-19 - Last updated in NVD database

Technical Details for CVE-2026-12983

Vulnerability Analysis

The Dinatur plugin exposes a request handler that accepts user-supplied input and concatenates it directly into a SQL statement. Because the plugin does not sanitize or escape this input, an attacker can inject arbitrary SQL syntax. The attack requires no authentication and no user interaction, and it is reachable over the network.

The same handler contains a second flaw. It executes a database table truncation operation without verifying the caller's identity or capabilities. Any anonymous HTTP request to the endpoint can trigger destruction of the plugin's stored data. The scope is marked as changed because the impact reaches beyond the vulnerable component into the WordPress database itself.

Root Cause

Two distinct coding defects share one endpoint. The first is missing input sanitization on parameters used inside a SQL query, a classic instance of [CWE-89]. The second is a missing authorization check before invoking a destructive TRUNCATE operation. WordPress capability checks such as current_user_can() and nonce validation via check_admin_referer() are absent from the handler.

Attack Vector

An attacker sends a crafted HTTP request to the vulnerable Dinatur handler. To exploit the SQL injection, the attacker embeds SQL payloads inside the parameter that the plugin passes into its query. To trigger data destruction, the attacker simply calls the endpoint with no credentials. Both variants can be automated with tools such as sqlmap or a basic HTTP client.

No verified proof-of-concept code has been published. Refer to the WPScan Vulnerability Report for technical details.

Detection Methods for CVE-2026-12983

Indicators of Compromise

Unexpected HTTP requests to Dinatur plugin endpoints from unauthenticated sources
Empty or truncated Dinatur plugin database tables where records previously existed
SQL error messages or database warnings in WordPress logs referencing Dinatur query paths
Requests containing SQL syntax such as UNION SELECT, SLEEP(, or comment sequences targeting plugin parameters

Detection Strategies

Inspect web server access logs for anonymous POST or GET requests to Dinatur handler URLs
Correlate database TRUNCATE statements against Dinatur tables with the originating HTTP session
Deploy WordPress-aware web application firewall rules that flag SQL injection payloads against plugin endpoints
Baseline Dinatur table row counts and alert on abrupt drops to zero

Monitoring Recommendations

Enable MySQL general query logging temporarily to capture the exact SQL executed by the plugin
Forward WordPress debug.log and web server logs to a central SIEM for correlation
Monitor for spikes in 500-series responses from plugin endpoints, which often accompany injection probing

How to Mitigate CVE-2026-12983

Immediate Actions Required

Deactivate and remove the Dinatur plugin until a patched version is confirmed available
Restore any truncated Dinatur tables from the most recent database backup
Rotate WordPress administrator credentials and API keys stored in the database
Review WordPress wp_users and wp_options tables for signs of data extraction or tampering

Patch Information

At the time of publication, no fixed version is listed in the referenced advisory for versions after 1.18. Site operators should consult the WPScan Vulnerability Report for updates and monitor the vendor for a patched release. Do not reinstall the plugin until a version above 1.18 is confirmed to remediate both the SQL injection and the missing authorization check.

Workarounds

Block access to Dinatur plugin endpoints at the web server or WAF layer until a fix is released
Restrict database privileges for the WordPress MySQL user to prevent DROP and limit TRUNCATE where possible
Enforce IP allowlisting on /wp-admin and plugin AJAX endpoints for administrative environments
Increase database backup frequency to reduce recovery time if truncation occurs

bash

# Example nginx rule to block requests to the vulnerable plugin path
location ~* /wp-content/plugins/dinatur/ {
    return 403;
}

# Example WAF pattern to flag SQLi payloads on plugin parameters
# ModSecurity rule fragment
SecRule ARGS "@rx (?i)(union(\s|/\*.*\*/)+select|sleep\s*\(|--\s|;\s*truncate)" \
    "id:1029831,phase:2,deny,status:403,msg:'Possible SQLi against Dinatur plugin'"