CVE-2025-11501 Overview
The Dynamically Display Posts plugin for WordPress contains a SQL injection vulnerability in the tax_query parameter. The flaw affects all versions up to and including 1.1. Insufficient escaping of user-supplied input combined with inadequate query preparation allows unauthenticated attackers to append arbitrary SQL statements to existing queries. Successful exploitation enables extraction of sensitive data from the WordPress database, including user credentials, session tokens, and configuration secrets. The vulnerability is classified under [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command).
Critical Impact
Unauthenticated attackers can extract sensitive data from the WordPress database by injecting SQL through the tax_query parameter, with no authentication or user interaction required.
Affected Products
- Dynamically Display Posts plugin for WordPress (all versions through 1.1)
- WordPress sites with the vulnerable plugin installed and activated
- Any deployment exposing the plugin's frontend functionality to unauthenticated visitors
Discovery Timeline
- 2025-10-15 - CVE-2025-11501 published to NVD
- 2026-04-15 - Last updated in NVD database
Technical Details for CVE-2025-11501
Vulnerability Analysis
The vulnerability resides in the plugin's database interaction logic, specifically in includes/frontend/classes/database-talk.php. The plugin accepts a tax_query parameter from user-supplied input and concatenates the value directly into a SQL query. The code path does not call wpdb::prepare() with parameterized placeholders and does not sanitize the value with WordPress escaping helpers such as esc_sql() or sanitize_text_field().
Because the request is reachable without authentication, any remote visitor can manipulate the tax_query argument. Attackers can use UNION-based or boolean-based injection techniques to read arbitrary tables, including wp_users and wp_options. Refer to the WordPress Plugin Code Review for the exact vulnerable location.
Root Cause
The root cause is the combination of two coding errors. First, the plugin trusts the tax_query parameter without validating its type or content. Second, it builds the SQL query through string interpolation rather than using prepared statements. This pattern bypasses WordPress's built-in query safety mechanisms.
Attack Vector
The attack is remote and unauthenticated. An attacker submits a crafted HTTP request containing malicious SQL fragments in the tax_query parameter. The injected payload is concatenated into the active query and executed by the database. The impact is limited to confidentiality, as the vector enables data extraction but does not directly modify data or terminate service.
No verified public proof-of-concept code is available. See the Wordfence Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-11501
Indicators of Compromise
- HTTP requests containing SQL keywords (UNION, SELECT, SLEEP, INFORMATION_SCHEMA) in the tax_query parameter
- Unexpected outbound responses with database content embedded in rendered pages
- Web server access logs showing repeated parameter probing from a single source IP
- Database query logs containing malformed or unusually long taxonomy clauses
Detection Strategies
- Inspect WordPress access logs for requests targeting endpoints handled by the Dynamically Display Posts plugin with suspicious tax_query values
- Deploy web application firewall (WAF) rules that flag SQL meta-characters in plugin query parameters
- Enable MySQL/MariaDB general query logging temporarily to identify injection attempts reaching the database
Monitoring Recommendations
- Alert on HTTP 500 errors correlated with the plugin's request handlers, which often accompany failed injection attempts
- Monitor for newly created administrative users or modified wp_options rows following suspicious traffic spikes
- Track outbound response sizes for plugin-rendered endpoints to identify data exfiltration patterns
How to Mitigate CVE-2025-11501
Immediate Actions Required
- Deactivate and remove the Dynamically Display Posts plugin until a patched version is available
- Audit wp_users and recent database activity for signs of unauthorized access or data extraction
- Rotate WordPress administrator passwords, API keys, and secret salts defined in wp-config.php
- Apply WAF rules to block requests containing SQL syntax in the tax_query parameter
Patch Information
At the time of publication, no fixed version is referenced in the NVD record. Site administrators should monitor the plugin's WordPress.org listing and the Wordfence Vulnerability Report for patch availability. Until a fix ships, removal is the recommended remediation.
Workarounds
- Restrict access to plugin-handled endpoints using web server access controls or authentication requirements
- Deploy virtual patching through a WAF that filters SQL injection payloads against the tax_query parameter
- Apply the principle of least privilege to the WordPress database user, removing rights to sensitive tables where feasible
# Example ModSecurity rule to block SQL meta-characters in tax_query
SecRule ARGS:tax_query "@rx (?i)(union(\s)+select|information_schema|sleep\(|benchmark\()" \
"id:1011501,phase:2,deny,status:403,log,msg:'CVE-2025-11501 SQLi attempt in tax_query'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
