PT-2026-42569 · Unknown · Concrete Cms

Yonatan Drori · CVE-2026-8413 · Published 2026-05-21 · Updated 2026-05-22

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.x

Description Cross Site Request Forgery (CSRF) occurs at the 'concrete/controllers/dialog/page/bulk/design' endpoint. CSRF is a flaw that allows an attacker to induce users to perform actions they do not intend to perform.

Recommendations Update to version 9.5.0.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

CWE-1275

Related Identifiers

CVE-2026-8413

GHSA-MPQ2-MV8P-9WM6

Affected Products

Concrete Cms

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8413.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-8413 · Security Note
• https://osv.dev/vulnerability/CVE-2026-8413 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-mpq2-mv8p-9wm6 · Vendor Advisory
• https://github.com/concretecms/concretecms · Note
• https://twitter.com/CVEnew/status/2057783199510524388 · Twitter Post
• https://t.me/CVEtracker/54567 · Telegram Post
• https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes · Note