Title: Security problem?
Last modified: August 21, 2016

---

# Security problem?

 *  [lucrus](https://wordpress.org/support/users/lucrus/)
 * (@lucrus)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/security-problem-14/)
 * In error.log of a WP site I’ve inherited I get several errors like this:
 * `[Wed Dec 04 01:11:52 2013] [error] [client 198.27.80.33] WordPress errore sul
   database MySQL server has gone away per la query UPDATE`hcvwp_options`SET`option_value`
   = 'a:6:{i:1386115794;a:2:{s:16:\\"wp_version_check\\";a:1:{s:32:\\"40cd750bba9870f18aada2478b24840a\\";
   a:3:{s:8:\\"schedule\\";s:10:\\"twicedaily\\";s:4:\\"args\\";a:0:{}s:8:\\"interval\\";
   i:43200;}}s:17:\\"wp_update_plugins\\";a:1:{s:32:\\"40cd750bba9870f18aada2478b24840a\\";
   a:3:{s:8:\\"schedule\\";s:10:\\"twicedaily\\";s:4:\\"args\\";a:0:{}s:8:\\"interval\\";
   i:43200;}}}i:1386115892;a:1:{s:11:\\"wp_cache_gc\\";a:1:{s:32:\\"40cd750bba9870f18aada2478b24840a\\";
   a:2:{s:8:\\"schedule\\";b:0;s:4:\\"args\\";a:0:{}}}}i:1386136800;a:1:{s:20:\\"
   wp_maybe_auto_update\\";a:1:{s:32:\\"40cd750bba9870f18aada2478b24840a\\";a:3:{
   s:8:\\"schedule\\";s:10:\\"twicedaily\\";s:4:\\"args\\";a:0:{}s:8:\\"interval\\";
   i:43200;}}}i:1386161328;a:1:{s:19:\\"wp_scheduled_delete\\";a:1:{s:32:\\"40cd750bba9870f18aada2478b24840a\\";
   a:3:{s:8:\\"schedule\\";s:5:\\"daily\\";s:4:\\"args\\";a:0:{}s:8:\\"interval\\";
   i:86400;}}}i:1386164926;a:1:{s:30:\\"wp_scheduled_auto_draft_delete\\";a:1:{s:
   32:\\"40cd750bba9870f18aada2478b24840a\\";a:3:{s:8:\\"schedule\\";s:5:\\"daily\\";
   s:4:\\"args\\";a:0:{}s:8:\\"interval\\";i:86400;}}}s:7:\\"version\\";i:2;}' WHERE`
   option_name`= 'cron' fatta da require('wp-blog-header.php'), require_once('wp-
   load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('
   plugins_loaded'), call_user_func_array, bwps_secure->themeupdates, wp_clear_scheduled_hook,
   wp_unschedule_event, _set_cron_array, update_option`
 * in rapid succession, e.g. hundreds in a few minutes. After those, I get
    `[Wed
   Dec 04 01:11:52 2013] [error] [client 198.27.80.33] PHP Fatal error: Allowed 
   memory size of 268435456 bytes exhausted (tried to allocate 52 bytes) in /home/.../
   wp-includes/functions.php on line 3950`
 * Line 3950 is inside the `wp_debug_backtrace_summary` function, so I believe that
   means the exception was an outofmemory that pervented even the debug function
   to work. Now I guess the outofmemory could be caused by previous a loop of those`
   MySQL server has gone away` events.
 * That being said (er… guessed) I still wonder where the problem hides in my site.
   How can I spot it?
 * Just for the record, I’m running WP updated at its most recent release and a 
   five plugins, all updated (Better WP Security, Custom sidebars, Google Picasa
   Viewer, PicasaView, WP Super Cache). A number of other plugins are installed 
   but disabled.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/security-problem-14/#post-4378413)
 * > MySQL server has gone away
 * Sounds like a server issue. Try contacting your hosts about it.
 *  Thread Starter [lucrus](https://wordpress.org/support/users/lucrus/)
 * (@lucrus)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/security-problem-14/#post-4378507)
 * It’s a virtual server, root access, I installed it myself. I’m quite sure it’s
   a server issue, but I suspect the crashes are being caused by some injected SQL,
   because I experience server crashes only after those wp queries.
 * In other words I suspect an SQL injection that causes DoS.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Security problem?’ is closed to new replies.

## Tags

 * [out of memory](https://wordpress.org/support/topic-tag/out-of-memory/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [lucrus](https://wordpress.org/support/users/lucrus/)
 * Last activity: [12 years, 5 months ago](https://wordpress.org/support/topic/security-problem-14/#post-4378507)
 * Status: not resolved

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