Hi, Details ================ # Title : Malicious File Upload in NextGEN Gallery by Photocrati Version 2.1.10 # Affected Product : NextGEN Gallery by Photocrati Version 2.1.10 # Vendor Homepage: https://wordpress.org/plugins/nextgen-gallery/download/ # Vulnerability Type : Malicious File upload # Risk : High # POC URL : https://github.com/cybersecurityworks/Disclosed/issues/6 # Video URL : https://www.youtube.com/watch?v=hMMG42HsgUA&feature=youtu.be # Status : Fixed # CVE-Assigned : No Description ================ Even though credentials are required to upload file into the server. any new combined vulnerability can allow an attacker to Upload shell into the server which gives entire root access of the server. Technical Details ================ 1. Logon into any wordpress application (localhost or public host) 2. Move on to Next Gen Gallery plugin file upload option available on products. 3. Upload JPG file to the server through file upload option. 4. Modify the file variable contains JPG extension to PHP. Also, edit and add shell content to the name variable body containing JPG information/content. Advisory Timeline ================ 2015-09-04 – Discovered in NextGen Gallery 2.1.10 version. 2015-09-04 – Reported to plugins@wordpress.org 2015-09-04 – Vendor responded in the same. 2015-09-09 – Fixed in NextGen Gallery 2.1.15 version. 2015-10-27 – CVE Requested Fix ================ https://www.owasp.org/index.php/Unrestricted_File_Upload Credits & Authors ================ sathish@cybersecurityworks.com from cybersecurityworks Pvt Ltd About Cybersecurityworks ================ Cybersecurity Works is basically an auditing company passionate working on findings & reporting security flaws & vulnerabilities on web application and network. As professionals, we handle each client differently based on their unique requirements. Visit our website http://www.cybersecurityworks.com/ for more information. -- ---------- Cheers !!! Team CSW Research Lab