Description
WordPress Plugin ChenPress is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input. An attacker can exploit this vulnerability to upload arbitrary PHP code and run it in the context of the Web server process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin ChenPress version 3.0 is vulnerable; other versions may also be affected.
Remediation
Disable the plugin
References
http://www.securityfocus.com/bid/54635/exploit
http://www.securityfocus.com/archive/1/523614
http://cxsecurity.com/issue/WLB-2012070151
http://packetstormsecurity.com/files/114946/WordPress-Chenpress-Shell-Upload.html
Related Vulnerabilities
PHP Use After Free Vulnerability (CVE-2016-9138)
Drupal Core 7.x Cross-Site Scripting (7.0 - 7.65)
WordPress Plugin Viral Quiz Maker-OnionBuzz SQL Injection (1.2.6)
WordPress Plugin FoxyPress Multiple Vulnerabilities (0.4.2.5)
WordPress Plugin Category Specific RSS feed Subscription Cross-Site Request Forgery (2.0)