PT-2026-42553 · Unknown · Concrete Cms

Youssef Eid · Published 2026-05-21 · Updated 2026-05-22 · CVE-2026-7879

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier

Description The submit password() method in 'concrete/controllers/single page/download file.php' allows unauthorized file access because the process for downloading permission-restricted files bypasses the view file permission check. This allows files without passwords to be downloaded and enables any user who knows a file's password to download a password-protected file, regardless of their actual access permissions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-7879

Affected Products

Concrete Cms

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-7879 · Security Note
• https://t.me/cveNotify/164638 · Telegram Post
• https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes · Note