Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-3452— Concrete CMS below 9.4.8 is vulnerable to stored deserialization leading to RCE in the Express Entry List block.

EPSS 0.26% · P49
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-3452

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Concrete CMS below 9.4.8 is vulnerable to stored deserialization leading to RCE in the Express Entry List block.
Source: NVD (National Vulnerability Database)
Vulnerability 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 https://hackerone.com/yjk0805 ) of ZUSO ART https://zuso.ai/  for reporting.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Concrete CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Concrete CMS是Concrete CMS开源的一个面向团队的开源内容管理系统。 Concrete CMS 9.4.8之前版本存在安全漏洞，该漏洞源于Express Entry List块中columns参数存在PHP对象注入，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Concrete CMSConcrete CMS 5 ~ 9.4.8 -

II. Public POCs for CVE-2026-3452

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-3452

请登录查看更多情报信息。

Same Patch Batch · Concrete CMS · 2026-03-04 · 6 CVEs total

CVE-2026-3244Concrete CMS below version 9.4.8 is vulnerable to Stored XSS in Search Results via Page Na
CVE-2026-3241Concrete CMS below version 9.4.8 is vulnerable to a stored cross-site scripting (XSS) in t
CVE-2026-3242Concrete CMS below 9.4.8 is vulnerable to Stored XSS in the Switch Language block
CVE-2026-3240Concrete CMS below 9.4.8 is vulnerable to Stored XSS via Legacy form
CVE-2026-2994Concrete CMS below 9.4.8 is vulnerable to CSRF by a Rogue Admin using the Anti-Spam Allowl

IV. Related Vulnerabilities

Same product: Concrete CMS
Same vendor: Concrete CMS
Same weakness: CWE-502

V. Comments for CVE-2026-3452

No comments yet

Leave a comment