False positives & Undefined offset: 7 wordfenceScanner.php Line: 400

  • Resolved magefix

    (@magefix)


    2 years ago

    The scanner returns the following error & all the files are marked as malicious. The Wordfence plugin runs with a multisite environment.

    Error: [May 31 12:54:11] Undefined offset: 7 (8) File: /home/…/wp-content/plugins/wordfence/lib/wordfenceScanner.php Line: 400

    PHP ver. 7.4.33

    • This topic was modified 2 years ago by magefix.

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Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Support wfpeter

    (@wfpeter)

    2 years ago

    Hi @magefix, thanks for reaching out.

    User defined scan pattern usually means the files were hit by your own “Additional scan signatures” added to Wordfence > All Options > Advanced Scan Options that you may need to review. I’m wondering if the PHP error is originating from invalid content here that the scan is unable to ignore or work around, so it might be worth copying any contents in that textarea, saving it in a separate document (so it could be reinstated later) and trying another manual full scan.

    Let us know how you get on!
    Peter.

    Thread Starter magefix

    (@magefix)

    2 years ago

    Hi @wfpeter , thanks for the detailed response. I followed your advice & checked the “Additional scan signatures” but the section was empty, so I restored the settings to the default values. The problem is now solved since there are no more false-positives listed – much better. Thank you!

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

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  • 2 replies
  • 2 participants
  • Last reply from: magefix
  • Last activity: 2 years ago
  • Status: resolved