CVE-2026-3452 - Concrete CMS below 9.4.8 is vulnerable to stored deserialization leading to RCE i...

CVE ID : CVE-2026-3452 Published : March 4, 2026, 1:49 a.m. | 33 minutes ago Description : Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configuration fields that are later passed to unserialize() without class restrictions or integrity checks. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 8.9 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H. Thanks YJK ( @YJK0805 ) of ZUSO ART  for reporting. Severity: 8.9 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...