Title: Frequent malware in WP Super Cache cached pages
Last modified: May 24, 2024

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# Frequent malware in WP Super Cache cached pages

 *  Resolved [Floris](https://wordpress.org/support/users/florismk/)
 * (@florismk)
 * [1 year, 10 months ago](https://wordpress.org/support/topic/frequent-malware-in-wp-super-cache-cached-pages/)
 * Since I started using WP Super Cache, it happens often (almost monthly) that 
   WordFence finds malware (PD9) in cached pages. It’s good news that it’s getting
   caught, of course, but bad news that it’s there at all. WordFence _never_ found
   malware on my sites before I installed WP Super Cache. And the malware is always
   only found in cached pages.
 * How and why does this happen, and how do I keep it from happening?
 * Reports are like this (filename varies, of course):
 *     ```wp-block-code
       /mnt/web003/e2/70/511363570/htdocs/floriskleijne.nl/wp-content/cache/supercache/www.floriskleijne.nl/meta-wp-cache-3c685ba0ad8c85ade50e389730ed2748.php
   
       Backdoor: PHP/PD9.5376 (A backdoor known as PD9).
       ```
   
 * PS: Previously posted in the WP Super Cache forum, they refer me to WorfFence
   as they are not aware of a vulnerability in the plugin, and if there was a plugin
   vulnerability, there would be way higher incidence of this issue.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffrequent-malware-in-wp-super-cache-cached-pages%2Fpage%2F2%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘Frequent malware in WP Super Cache cached pages’ is closed to new replies.

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## Tags

 * [cache](https://wordpress.org/support/topic-tag/cache/)

 * 16 replies
 * 4 participants
 * Last reply from: [Floris](https://wordpress.org/support/users/florismk/)
 * Last activity: [1 year, 10 months ago](https://wordpress.org/support/topic/frequent-malware-in-wp-super-cache-cached-pages/page/2/#post-17790719)
 * Status: resolved