CVE-2026-12512 Overview
CVE-2026-12512 is an unauthenticated SQL injection vulnerability in the Quotes llama WordPress plugin versions prior to 3.1.6. The plugin fails to sanitize and escape a user-supplied parameter before using it in a SQL query. Attackers can perform UNION-based SQL injection to read arbitrary data from the WordPress database, including administrator password hashes. The vulnerability requires no authentication and is exploitable over the network. It is tracked under CWE-89: Improper Neutralization of Special Elements used in an SQL Command.
Critical Impact
Unauthenticated attackers can extract arbitrary database contents, including user credentials, enabling site takeover through offline hash cracking.
Affected Products
- Quotes llama WordPress plugin versions prior to 3.1.6
- WordPress installations with the vulnerable plugin activated
- Any hosting environment exposing the affected plugin endpoint to the internet
Discovery Timeline
- 2026-07-15 - CVE-2026-12512 published to NVD
- 2026-07-15 - Last updated in NVD database
Technical Details for CVE-2026-12512
Vulnerability Analysis
The Quotes llama plugin accepts a user-controlled parameter and concatenates it directly into a SQL statement. Because the plugin neither sanitizes input nor uses parameterized queries, attackers inject arbitrary SQL syntax. The flaw supports UNION-based extraction, which lets attackers append additional SELECT statements and merge results into the plugin's normal response.
The scope is marked as changed because data reachable through the injection extends beyond the plugin's own tables. Attackers can read the WordPress wp_users table and retrieve user_pass hashes stored in phpass format. Cracked hashes translate directly into administrator access and full site compromise.
Exploitation does not require credentials, user interaction, or elevated privileges. The vulnerability is exploitable in default plugin configurations across all versions before 3.1.6. The EPSS score is 0.268% as of 2026-07-19.
Root Cause
The root cause is missing input validation combined with unsafe query construction. The plugin builds SQL strings using string concatenation rather than using the WordPress $wpdb->prepare() API with placeholders. Any single-quote or SQL keyword injected through the vulnerable parameter is interpreted as query syntax.
Attack Vector
Attackers send a crafted HTTP request to the plugin endpoint containing UNION-based SQL payloads in the vulnerable parameter. The injected query executes with the privileges of the WordPress database user, which typically has full read and write access to all site tables. Refer to the WPScan Vulnerability Report for exploitation specifics.
Detection Methods for CVE-2026-12512
Indicators of Compromise
- HTTP requests to Quotes llama plugin endpoints containing SQL keywords such as UNION, SELECT, INFORMATION_SCHEMA, or wp_users
- URL-encoded SQL metacharacters (%27, %20UNION%20, %20SELECT%20) in query parameters targeting the plugin
- Web server access logs showing unusually long query strings directed at Quotes llama routes
- Database query logs containing UNION SELECT statements originating from plugin code paths
Detection Strategies
- Deploy WAF rules that block SQL injection patterns against /wp-content/plugins/quotes-llama/ request paths
- Enable MySQL general query log during triage and grep for anomalous UNION statements tied to WordPress sessions
- Baseline normal plugin traffic and alert on requests exceeding typical parameter length or containing SQL syntax
- Correlate access log spikes with subsequent administrator login events from new IP addresses
Monitoring Recommendations
- Forward WordPress access logs and MySQL query logs to a centralized SIEM for retrospective analysis
- Monitor for unauthorized administrator account creation or role changes in wp_users and wp_usermeta
- Alert on outbound connections from the web server to unfamiliar destinations following suspicious requests
How to Mitigate CVE-2026-12512
Immediate Actions Required
- Update Quotes llama to version 3.1.6 or later on all WordPress installations
- Rotate all WordPress user passwords, database credentials, and API keys if exploitation is suspected
- Audit wp_users for unauthorized accounts and review recent administrator activity
- Force logout of all active sessions by regenerating WordPress secret keys in wp-config.php
Patch Information
The vendor addressed the vulnerability in Quotes llama version 3.1.6. The patch introduces proper input sanitization and prepared statements for the affected query. Review the WPScan Vulnerability Report for version details and upgrade guidance.
Workarounds
- Deactivate and remove the Quotes llama plugin until the patched version is applied
- Deploy a Web Application Firewall with SQL injection signatures in blocking mode
- Restrict database user privileges so the WordPress account cannot read sensitive tables beyond required scope
- Enable two-factor authentication for all administrator accounts to reduce impact of leaked hashes
# Update the plugin using WP-CLI
wp plugin update quotes-llama --version=3.1.6
# Verify installed version
wp plugin get quotes-llama --field=version
# Rotate WordPress salts to invalidate existing sessions
wp config shuffle-salts
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
