SCA: security update for concrete5/concrete5 (GHSA-xjg6-5v39-v7fc)

low Tenable Cloud Security Plugin ID 444117

Description

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

- Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\File::approveVersion. Victim with
edit_file_contents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version
(downgrade to an older version of a file, or activation of a co-editor's unpublished version). The
Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.
(CVE-2026-8340)

Solution

Update the concrete5/concrete5 library and its related packages to version 9.5.1 or later.

Plugin Details

Severity: Low

ID: 444117

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 6/30/2026

Updated: 6/30/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.2

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-8340

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.3

Threat Score: 0.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/26/2026

Vulnerability Publication Date: 5/22/2026

Reference Information

CVE: CVE-2026-8340

cwe: CWE-352

Detections

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