PT-2026-42553 · Unknown · Concrete Cms

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

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

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.

Exploit

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-7879

GHSA-FQG3-8W8R-8G94

Affected Products

Concrete Cms

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7879.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7879 · Security Note
• https://osv.dev/vulnerability/CVE-2026-7879 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-fqg3-8w8r-8g94 · Vendor Advisory
• https://github.com/concretecms/concretecms · Note
• https://t.me/cveNotify/164638 · Telegram Post
• https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes · Note