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SCA: security update for concrete5/concrete5 (GHSA-gj26-w59c-29mf)

high Tenable Self-Hosted Container Security Plugin ID 438382

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.
 (CVE-2026-3452)

See Also

https://github.com/advisories/GHSA-gj26-w59c-29mf

Plugin Details

Severity: High

ID: 438382

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/5/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-3452

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.9

Threat Score: 5.9

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/4/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-3452

cwe: CWE-502