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Author: Denis Shagimuratov

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Major signs of Malware on an infected WordPress site

Major signs of Malware on an infected WordPress site

Hi guys, I’d like to share some significant signals that tell about infection on a WordPress site. These data has been collected by our research team at CleanTalk. The team reviews up to 10k files weekly as well as we

Denis Shagimuratov February 17, 2026 Experience, Security 5 Comments Read more

WordPress Plugin Security Certification 2025 — Nonce Validation Passed

fix WordPress nonce error

Certified Secure: GDPR Cookie Compliance 5.0.9 Available on WordPress.org: GDPR Cookie Compliance plugin page The GDPR Cookie Compliance plugin (v5.0.9) has successfully passed the CleanTalk Plugin Security Certification (PSC-2025-64591). The certification confirms that the team implements all security controls and

Denis Shagimuratov October 29, 2025November 21, 2025 Security No Comments Read more

Cron as the way to re-infect WordPress

Cron as the way to re-infect WordPress

Our research team discovered a new type of tricky malware that modify cron to re-infect a WordPress site. It causes some problems because of unusual way of infection. Cron is a task scheduler in Unix-based systems that allows specific commands

Denis Shagimuratov October 23, 2024November 20, 2024 Experience, Security 3 Comments Read more

radio.php infects WordPress

radio.php infects WordPress

Radio.php is a classical backdoor or shell, it is using to infect and take control of a site. Through this backdoor an attacker is able to, For a note, radios.php is not a part of standard WordPress setup. How can

Denis Shagimuratov October 18, 2024October 19, 2024 Experience, Security 2 Comments Read more

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  1. PHP2Shell and WordPress: What CVE-2026-109618 and CVE-2026-109619 Mean for Your Site - Plugin Security Certification (PSC) by CleanTalk on WordPress File Integrity Monitoring: Detect File Changes with Security by CleanTalk

    […] The File System Watcher keeps snapshots of the site’s PHP files and shows exactly which files were added or…

  2. CVE-2025-15703 - WP Job Openings - Admin+ Stored XSS - POC - Plugin Security Certification (PSC) by CleanTalk on Effective Prevention Methods for XSS

    […] To prevent this type of attack, follow our methods of XSS prevention. […]

  3. WordPress Database Triggers and Malware | CleanTalk on WordPress File Integrity Monitoring: Detect File Changes with Security by CleanTalk

    […] accounts and capabilities, update the affected software, and examine other persistence locations. File System Watcher can reveal file changes…

  4. WordPress Database Triggers and Malware | CleanTalk on Malicious mu-plugins: The Stealthy WordPress Backdoor Hiding in wp-content/mu-plugins

    […] is a different persistence location from an operating-system cron task or a malicious must-use plugin. Those checks remain useful,…

  5. WordPress Database Triggers and Malware | CleanTalk on Cron as the way to re-infect WordPress

    […] is a different persistence location from an operating-system cron task or a malicious must-use plugin. Those checks remain useful,…

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