CVE-2025-22507 Overview
CVE-2025-22507 is a SQL injection vulnerability in the iDo8p WPMU Prefill Post plugin for WordPress [CWE-89]. The flaw affects all versions of the wpmu-prefill-post plugin up to and including 1.02. Attackers with high privileges can inject malicious SQL through unsanitized input passed to database queries. Successful exploitation enables unauthorized data access and partial impact on availability, with the scope extending beyond the vulnerable component.
Critical Impact
Authenticated attackers can execute arbitrary SQL queries against the WordPress database, exposing stored content, configuration data, and user information across the multisite environment.
Affected Products
- iDo8p WPMU Prefill Post plugin for WordPress
- All versions from n/a through 1.02
- WordPress multisite installations using wpmu-prefill-post
Discovery Timeline
- 2025-01-07 - CVE-2025-22507 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-22507
Vulnerability Analysis
The vulnerability stems from improper neutralization of special elements used in SQL commands within the WPMU Prefill Post plugin. User-supplied input reaches database query construction without sufficient sanitization or parameterization. Attackers can break out of intended query context and append arbitrary SQL clauses.
The issue requires high privileges to exploit, meaning the attacker must already hold an authenticated administrative or elevated role. However, the scope is marked as changed, indicating that exploitation impacts resources beyond the plugin itself. Confidentiality impact is high while integrity is unaffected and availability impact is low.
Root Cause
The root cause is missing or insufficient input validation on plugin parameters that feed into SQL queries. The plugin does not use prepared statements or the WordPress $wpdb->prepare() API correctly. Special characters in attacker-controlled input alter the structure of the executed query.
Attack Vector
Exploitation occurs over the network through standard HTTP requests to the WordPress admin interface. The attacker submits crafted parameters containing SQL metacharacters to plugin endpoints. The plugin concatenates these values into queries that execute against the underlying database.
No working public proof-of-concept code is referenced for this CVE. See the Patchstack advisory for additional technical context.
Detection Methods for CVE-2025-22507
Indicators of Compromise
- Unusual database query patterns originating from WordPress admin sessions tied to the wpmu-prefill-post plugin
- Web server access logs showing SQL metacharacters such as UNION, SELECT, --, or ' in plugin parameters
- Unexpected outbound data flows from the WordPress host following plugin requests
Detection Strategies
- Inspect WordPress access logs for requests to plugin endpoints containing SQL keywords or encoded payloads
- Enable MySQL general query logging temporarily to identify malformed or anomalous statements
- Deploy a Web Application Firewall (WAF) ruleset that flags SQL injection signatures targeting WordPress plugins
Monitoring Recommendations
- Audit administrative account activity across WordPress multisite installations
- Alert on plugin parameter values that contain SQL syntax tokens
- Track database errors logged by WordPress that may indicate failed injection attempts
How to Mitigate CVE-2025-22507
Immediate Actions Required
- Deactivate the WPMU Prefill Post plugin until a patched release is confirmed
- Restrict administrative access to trusted users and enforce multi-factor authentication
- Review WordPress user roles and remove unnecessary high-privilege accounts
- Apply WAF rules that block SQL injection patterns aimed at WordPress plugin endpoints
Patch Information
No vendor patch is referenced in the available data for versions beyond 1.02. Monitor the Patchstack advisory for updates and replace the plugin if a fixed version is published.
Workarounds
- Remove the wpmu-prefill-post plugin directory from the WordPress installation if no patch is available
- Limit administrative panel access by IP allowlist at the web server or firewall layer
- Use a database account with least-privilege permissions for WordPress to limit impact
# Configuration example - disable the affected plugin via WP-CLI
wp plugin deactivate wpmu-prefill-post --network
wp plugin delete wpmu-prefill-post
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
