Cannot modify header information – headers already sent by (output started at…

  • Hello,

    The site has been hacked, so I cleaned the infected folders (deleted some that were not initially in WP, and obviously part of the hack).
    For security reasons, I decided to change the passwords of the users of the site, which succeeded, but now WP has thrown me out, I have no access anymore to the back office, and get these messages while trying to log in again :

    Warning: Cannot modify header information – headers already sent by (output started at /home/airproje/www/WordPress3/wp-includes/revision.php:1) in /home/airproje/www/WordPress3/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 62

    Warning: Cannot modify header information – headers already sent by (output started at /home/airproje/www/WordPress3/wp-includes/revision.php:1) in /home/airproje/www/WordPress3/wp-login.php on line 431

    Warning: Cannot modify header information – headers already sent by (output started at /home/airproje/www/WordPress3/wp-includes/revision.php:1) in /home/airproje/www/WordPress3/wp-login.php on line 444

    Warning: Cannot modify header information – headers already sent by (output started at /home/airproje/www/WordPress3/wp-includes/revision.php:1) in /home/airproje/www/WordPress3/wp-login.php on line 446

    Could you please help me ?
    Thanks a lot !

Viewing 4 replies - 1 through 4 (of 4 total)

  • How long has the website been running?

    Thread Starter Youpitralala

    (@youpitralala)

    The site has 2 years, but I had to remake it the lest weeks because of a hack.
    Today we found it was a Trojan, so I listed the files infected with Avast, deleted some (the ones added but the Trojan) and replaced the others with a clean version, via FTP.
    Right after that, I could log in to the admin, and changed the passwords, having this sentence when validating the changes (but received the emails confirming the password changes).
    Now I cannot acceed to the user interface.

    Best would be to see if you have a backup of the site before the hack and see if you can restore the site

    Thread Starter Youpitralala

    (@youpitralala)

    Unfortunately, the last back up I have is also infected.

    While trying to connect the admin (https://airproject.fr/WordPress3/wp-admin/), I just have that message :
    Warning: Cannot modify header information – headers already sent by (output started at /home/airproje/www/WordPress3/wp-includes/revision.php:1) in /home/airproje/www/WordPress3/wp-includes/pluggable.php on line 1207

    Is there anything I can do ?

Viewing 4 replies - 1 through 4 (of 4 total)
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