CVE-2026-22464 is a Remote File Inclusion (RFI) vulnerability found in the wphocus My auctions allegro WordPress plugin, versions up to and including 3.6.33. The root cause is improper control over the filename parameter used in PHP include or require statements, which allows an attacker to specify a remote file URL that the server will fetch and execute as PHP code. This occurs because the plugin fails to properly sanitize or validate input controlling the file path, enabling remote attackers to inject malicious PHP scripts hosted on external servers. The vulnerability requires no authentication or user interaction, making it trivially exploitable over the network. Successful exploitation results in arbitrary code execution with the privileges of the web server user, compromising confidentiality by exposing sensitive data or allowing further attacks such as web shell deployment. The CVSS v3.1 base score is 7.5 (high), reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high confidentiality impact. Although no known exploits are reported in the wild, the vulnerability poses a significant risk to affected installations. The plugin is commonly used in WordPress environments to facilitate auction functionality integrated with Allegro, a popular e-commerce platform, making it attractive to attackers targeting online marketplaces.

For European organizations, the impact of CVE-2026-22464 can be severe, especially for those operating e-commerce or auction websites using the vulnerable plugin. Exploitation can lead to unauthorized disclosure of sensitive customer and business data, including personal information and transaction details, violating GDPR and other data protection regulations. Attackers could also leverage the vulnerability to deploy web shells or pivot to internal networks, potentially causing further breaches or data loss. The compromise of web servers can damage organizational reputation and result in financial losses due to downtime or remediation costs. Given the plugin’s integration with Allegro, a widely used platform in Central and Eastern Europe, organizations in these regions may face targeted attacks. The vulnerability’s ease of exploitation and lack of required authentication increase the likelihood of automated scanning and exploitation attempts, raising the urgency for mitigation.

1. Immediately update the wphocus My auctions allegro plugin to a patched version once available from the vendor. If no patch exists, disable or uninstall the plugin until a fix is released. 2. Implement strict input validation and sanitization on all parameters controlling file inclusion paths to prevent injection of remote URLs. 3. Employ Web Application Firewalls (WAFs) with rules designed to detect and block RFI attempts targeting PHP include/require parameters. 4. Restrict outbound HTTP/HTTPS requests from web servers to only trusted destinations to limit the ability to fetch remote malicious files. 5. Conduct regular code audits and vulnerability scans on WordPress plugins, especially those handling file operations. 6. Monitor web server logs for unusual requests or errors related to file inclusion. 7. Follow the principle of least privilege for web server user accounts to minimize impact if exploitation occurs. 8. Educate developers and administrators about secure coding practices related to file inclusion and input handling.