Concrete CMS is vulnerable to IDOR

TRUNG BÌNH 5.3CVE-2026-8237 · GHSA-xpgc-7vc2-8725 · Công bố 21/05/2026 · cập nhật 23/07/2026

Tóm tắt nhanh

CVE-2026-8237 là lỗ hổng mức TRUNG BÌNH (CVSS 5.3) ảnh hưởng concrete5/concrete5, concrete cms (concretecms).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.64%, cao hơn 50.7% 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 IDOR. The /ccm/frontend/conversations/message_detail endpoint returns the full content of any conversation message. An unauthenticated attacker can enumerate all conversation messages, including messages from restricted pages, member-only areas, and the moderation queue. File attachments with download URLs are also exposed.

Mô tả của NVD

Concrete CMS 9.5.0 and below is vulnerable to IDOR. The `/ccm/frontend/conversations/message_detail` endpoint returns the full content of any conversation message. An unauthenticated attacker can enumerate all conversation messages, including messages from restricted pages, member-only areas, and the moderation queue. File attachments with download URLs are also exposed. 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:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Eldudareeno for reporting.