CVE-2026-33158
Craft CMS: Low-privilege users could read private asset contents when editing an asset (IDOR)
描述
### Summary A low-privileged authenticated user can read private asset content by calling `assets/edit-image` with an arbitrary `assetId` that they are not authorized to view. The endpoint returns image bytes (or a preview redirect) without enforcing a per-asset view authorization check, leading to potential unauthorized disclosure of private files. ### Details Root cause: - A user-controlled object reference (`assetId`) is used to load and return sensitive content. - The action does not verify whether the current user is authorized to view that asset. - This creates an authenticated IDOR / authorization bypass. ### Impact - Craft installations where private/non-public assets exist and low-privileged users can authenticate. ## Resources https://github.com/craftcms/cms/commit/7290d91639e
如何修補 CVE-2026-33158
要修補 CVE-2026-33158,請將受影響套件升級到下列已修補版本。
- —升級至 4.17.8 或更新版本
CVE-2026-33158 正在被利用嗎?
低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 4.0.0-RC1, < 4.17.8
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U |