Deserialization of Untrusted Data in Post Grid and Gutenberg Blocks – ComboBlocks - #VU47337
Published: October 6, 2020
Vulnerability identifier: #VU47337
CSH Severity: Medium
CVSS v4: 7.7 [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]
CVE-ID: N/A
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data passed via the "source" parameter in "post_grid_import_xml_layouts" function. 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.
Affected software
Post Grid and Gutenberg Blocks – ComboBlocks
Remediation
Install updates from vendor's website.
Post Grid and Gutenberg Blocks – ComboBlocks - update to 2.0.73