CVE-2026-7879

MEDIUM

Concrete CMS 9.5.0 and below is vulnerable to File Download Authorization Bypass in submit_password()

Title source: cna
STIX 2.1

Description

In Concrete CMS 9.5.0 and below,  the submit_password() method in concrete/controllers/single_page/download_file.php allows unauthorized file access since downloading permission-restricted files bypasses the view_file permission check. Files without passwords can be downloaded and any user who knows a file's password can download a password protected file regardless of whether they have permission to access the file. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N.  Thanks Youssef Eid for reporting

References (1)

Core 1

Scores

CVSS v3 5.3
EPSS 0.0022
EPSS Percentile 12.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-862
Status published
Products (2)
Concrete CMS/Concrete CMS 5.0 - 9.5.0
concretecms/concrete_cms < 9.5.1
Published May 21, 2026
Tracked Since May 22, 2026