Concrete CMS has a session-hardening bypass and allows password change without reauthorization

TRUNG BÌNH 4.3CVE-2026-8327 · GHSA-wmw3-3fv3-h54w · Công bố 21/05/2026 · cập nhật 23/07/2026

Tóm tắt nhanh

CVE-2026-8327 là lỗ hổng mức TRUNG BÌNH (CVSS 4.3) ảnh hưởng concrete5/concrete5, concrete cms (concretecms).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.18%, cao hơn 7.8% các lỗ hổng khác.
Cách xử lý: cập nhật lên 9.5.1 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
concrete5/concrete5 Packagist	`< 9.5.1`	`9.5.1`
concrete cms concretecms	`< 9.5.1`	`9.5.1`

Mô tả

Concrete CMS 9.5.0 and below is vulnerable to password change without reauthorization and session-hardening bypass. The user-profile edit controller passes the entire raw POST array to UserInfo::update() without field whitelisting resulting in password change without requiring the current password and also resulting in registered users able to disable the per-user-IP-pinning in the session validator which is meant to detect hijacking.

Mô tả của NVD

Concrete CMS below 9.5.0 and below is vulnerable to password change without reauthorization and session-hardening bypass. The user-profile edit controller passes the entire raw POST array to UserInfo::update() without field whitelisting resulting in password change without requiring the current password and also resulting in registered users able to disable the per-user-IP-pinning in the session validator which is meant to detect hijacking. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 5.3 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks 0x4c616e for reporting.