Bug #77089 [NEW]: An email with an invalid character passes filter_var validation

From: marco dot bagnaresi at golee dot it Operating system: Windows PHP version: 7.1.23 Package: *Mail Related Bug Type: Bug Bug description:An email with an invalid character passes filter_var validation Description: ------------ An email with an invalid character ' is filtered as a valid email. Test script: --------------- $email = "hello'@world.it"; $sanitized_email = filter_var($email, FILTER_SANITIZE_EMAIL); $this->assertEquals($email,$sanitized_email,"The email should not be valid!"); Expected result: ---------------- The email should not pass validation. Actual result: -------------- The email is returned from the filter_var function. -- Edit bug report at https://bugs.php.net/bug.php?id=77089&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77089&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77089&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77089&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77089&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77089&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77089&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77089&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77089&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77089&r=support Expected behavior: https://bugs.php.net/fix.php?id=77089&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77089&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77089&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77089&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77089&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77089&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77089&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77089&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77089&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77089&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77089&r=mysqlcfg