Title: HTML header injection
Last modified: February 4, 2019

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# HTML header injection

 *  Resolved [Michael Visser](https://wordpress.org/support/users/visser/)
 * (@visser)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/)
 * Hi Alex (Viper), just a heads up that the 1.2.1 Plugin release on line #1 contains“
   fsrc” before the PHP opener. We’ve all done it 😉
 * [https://plugins.trac.wordpress.org/browser/vipers-video-quicktags-migrator/trunk/vipers-video-quicktags-migrator.php](https://plugins.trac.wordpress.org/browser/vipers-video-quicktags-migrator/trunk/vipers-video-quicktags-migrator.php)
 * (Hang in there Viper, we’re all rooting for you! Congrats on 10M downloads for
   Regen. Thumbnails)

Viewing 9 replies - 1 through 9 (of 9 total)

 *  [thirstyjon](https://wordpress.org/support/users/thirstyjon/)
 * (@thirstyjon)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11166819)
 * Once again, I am not skilled in reading these things, but could these be the “
   4 unexpected characters” referred to in my post in this forum about PHP errors
   on a site?
 *  [tommcgee](https://wordpress.org/support/users/tommcgee/)
 * (@tommcgee)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11166938)
 * Nice catch, Michael. [@thirstyjon](https://wordpress.org/support/users/thirstyjon/),
   it’s the first 4 characters in the PHP file named above. Delete them, and save
   the file. Problem solved. Hopefully an official update will come soon.
 * Not-so-fun fact: this breaks the output of some other plugins. I was spending
   time trying to debug my events calendar because I wasn’t seeing any event listings.
   This was what was causing it.
 *  [cromwell4](https://wordpress.org/support/users/cromwell4/)
 * (@cromwell4)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11167069)
 * Excellent – thanks for the resolution! I had been getting “update failed: fsrc”
   errors when updating plugins and themes (although they did actually update). 
   After removing ‘fsrc’ from vipers-video-quicktags-migrator.php the errors no 
   longer occurred.
 *  [thirstyjon](https://wordpress.org/support/users/thirstyjon/)
 * (@thirstyjon)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11167148)
 * Thank you [@tommcgee](https://wordpress.org/support/users/tommcgee/),
 * That indeed worked.
 *  [agreda](https://wordpress.org/support/users/agreda/)
 * (@agreda)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11168118)
 * [@visser](https://wordpress.org/support/users/visser/) & [@tommcgee](https://wordpress.org/support/users/tommcgee/)
 * **Thank you!**
 *  Plugin Contributor [viper007bond](https://wordpress.org/support/users/viper007bond/)
 * (@viper007bond)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11168545)
 * Sorry about this. I’m visually impaired and completely missed the fact that I
   fat fingered in these extra characters. I’ll get a new version out ASAP!
 *  Thread Starter [Michael Visser](https://wordpress.org/support/users/visser/)
 * (@visser)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11168592)
 * No problem Alex (I’ve done it countless times too), I was freaking out that I’d
   been hacked, glad it’s an easy fix! If you need an extra pair of eyes just ping
   me 🙂
 *  Plugin Contributor [viper007bond](https://wordpress.org/support/users/viper007bond/)
 * (@viper007bond)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11168701)
 * Fixed in v1.2.2!
 *  Thread Starter [Michael Visser](https://wordpress.org/support/users/visser/)
 * (@visser)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11168745)
 * Legend! 🙂

Viewing 9 replies - 1 through 9 (of 9 total)

The topic ‘HTML header injection’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/vipers-video-quicktags-migrator.svg)
 * [Viper's Video Quicktags Migrator](https://wordpress.org/plugins/vipers-video-quicktags-migrator/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/vipers-video-quicktags-migrator/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/vipers-video-quicktags-migrator/)
 * [Active Topics](https://wordpress.org/support/plugin/vipers-video-quicktags-migrator/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/vipers-video-quicktags-migrator/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/vipers-video-quicktags-migrator/reviews/)

## Tags

 * [PHP errors](https://wordpress.org/support/topic-tag/php-errors/)

 * 9 replies
 * 6 participants
 * Last reply from: [Michael Visser](https://wordpress.org/support/users/visser/)
 * Last activity: [7 years, 3 months ago](https://wordpress.org/support/topic/html-header-injection/#post-11168745)
 * Status: resolved