CVE-2025-12850: 
WordPress vulnerability analysis and mitigation

CVE-2025-12850 is a SQL injection vulnerability in the My auctions allegro plugin for WordPress, affecting all versions up to and including 3.6.32. The flaw exists in the auction_id parameter, which lacks sufficient input escaping and proper SQL query preparation, enabling unauthenticated attackers to append malicious SQL queries and extract sensitive database contents. It was published on December 5, 2025, and assigned by Wordfence. The vulnerability carries a CVSS v3.1 base score of 7.5 (High) (Wordfence, Red Hat CVE).

The root cause is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). The auction_id parameter passed to the plugin's SQL query is neither properly escaped nor parameterized, allowing an attacker to inject arbitrary SQL syntax via a crafted network request. Because no authentication or user interaction is required and attack complexity is low, exploitation is straightforward from any network-accessible WordPress installation running the vulnerable plugin. No public proof-of-concept code has been identified at this time (Wordfence, ENISA EUVD).

Successful exploitation allows unauthenticated remote attackers to read arbitrary data from the WordPress database, including user credentials (hashed passwords), email addresses, session tokens, plugin configuration data, and any other sensitive information stored in the database. The impact is limited to confidentiality — integrity and availability are not directly affected by this vulnerability. However, extracted credentials could enable account takeover and further compromise of the WordPress site or underlying infrastructure (Wordfence, Red Hat CVE).

No public exploit code or active in-the-wild exploitation has been reported as of the time of publication. The EPSS score is approximately 0.064%, indicating a low (but non-zero) probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been identified (Wordfence, ENISA EUVD).

1. Reconnaissance: Identify WordPress sites running the My auctions allegro plugin (versions ≤ 3.6.32) using tools like WPScan, Shodan, or by inspecting plugin directories (/wp-content/plugins/my-auctions-allegro-free-edition/).
2. Identify vulnerable endpoint: Locate the plugin's front-end page or shortcode that accepts the auction_id parameter in an HTTP request (GET or POST).
3. Craft SQL injection payload: Append a malicious SQL fragment to the auction_id parameter value — for example, using a UNION-based or time-based blind injection technique (e.g., auction_id=1 UNION SELECT user_login,user_pass,NULL FROM wp_users--).
4. Send the request: Submit the crafted request to the target WordPress site without any authentication headers or cookies.
5. Extract data: Parse the HTTP response (or infer results via timing for blind injection) to retrieve sensitive database contents such as WordPress user credentials, email addresses, or other stored data (Wordfence).

• Network: Unusual HTTP requests containing SQL keywords (UNION, SELECT, FROM, --, OR 1=1, SLEEP, BENCHMARK) in the auction_id parameter targeting WordPress plugin endpoints.
• Logs: WordPress or web server access logs showing repeated requests to plugin-related URLs with anomalous auction_id values, particularly from a single IP or a small range of IPs in a short time window.
• Logs: HTTP 200 responses to requests with SQL injection patterns in query parameters, which may indicate successful data extraction.
• Process/Application: Unexpected database query errors or slow query log entries in MySQL/MariaDB related to the plugin's queries, potentially indicating time-based blind injection attempts.

The vendor (wphocus) released a patched version 3.6.33 of the My auctions allegro plugin, which addresses the SQL injection by properly escaping the auction_id parameter. Site administrators should update the plugin to version 3.6.33 or later immediately via the WordPress admin dashboard or by applying the changeset directly. As a temporary workaround, disabling the plugin until the update can be applied will eliminate the attack surface (Wordfence, WordPress Plugin Changeset).

The vulnerability received routine coverage from security aggregators and social media accounts focused on WordPress security. RedPacket Security shared alerts on Mastodon and Twitter/X, and INCIBE (Spain's national cybersecurity agency) published an early warning advisory. No notable independent researcher commentary or vendor statements beyond the Wordfence disclosure have been identified (Red Packet Security, INCIBE).