Error 500 on Wordfence wfWAFUserIPRange

  • Resolved TwoBrands BV

    (@webworkx)


    6 years, 8 months ago

    Got the following error on one of our many websites with wordfence:

    [Tue Jul 10 16:02:39.999829 2018] [:error] [pid 16394] [client xx.xx.xx.xx:58836] PHP Fatal error: Uncaught Error: Call to undefined method wfWAFUserIPRange::_sanitizeIPRange() in /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/waf/wfWAFUserIPRange.php:256\nStack trace:\n#0 /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/waf/wfWAFUserIPRange.php(17): wfWAFUserIPRange->setIPString(‘172.16.52.116’)\n#1 /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/waf/bootstrap.php(210): wfWAFUserIPRange->__construct(‘172.16.52.116’)\n#2 /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/waf.php(1918): wfWAFWordPressObserver->beforeRunRules()\n#3 /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/waf.php(204): wfWAFEventBus->beforeRunRules()\n#4 /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/waf/bootstrap.php(607): wfWAF->run()\n#5 /home/xxxxxx/domains/xxxxxx.nl/public_html/wordfence-waf.php(6): include in /home/xxxxxx/domains/xxxxxx.nl/public_html/wp-content/plugins/wordfence/waf/wfWAFUserIPRange.php on line 256

    This was resulting in a 500 error.
    After disabling wordfence all was good.
    Enabled Wordfence after some research about 10 minutes later. All was good again.

    Any idea what happened?

    Thanks,
    Rogier

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

  • Hi Rogier,

    I wonder if you have any WordPress installation in a sub-directory of this site with Wordfence installed?
    Also, did you try replacing the plugin files manually (via SFTP) with a recent and fresh copy directly downloaded from WordPress repository? that should fix this issue in case a broken update was the reason in first place.

    Thanks.

    Thread Starter TwoBrands BV

    (@webworkx)

    Hi,

    No we do not have any subdir with another installation.
    Still have no clue what happened, and how it resolved it by only activating and deactiving the plugin.

    We run 40+ websites with wordfence and never experienced this before.
    I guess mark this a resolved since it did not reappear.

    Thanks

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