#VU33669 Deserialization of Untrusted Data in Newsletter
Published: August 4, 2020
Vulnerability identifier: #VU33669
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Newsletter
Newsletter
Software vendor:
Stefano Lissa
Stefano Lissa
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the "restore_options_from_request" function called by the AJAX function "tnpc_render_callback" runs "unserialize" directly on "$options['inline_edits']" which is provided by user input in the "options" parameter. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.