CVE-2026-30948
Parse Server has stored cross-site scripting (XSS) via SVG file upload
描述
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2 and 8.6.17, a stored cross-site scripting (XSS) vulnerability allows any authenticated user to upload an SVG file containing JavaScript. The file is served inline with Content-Type: image/svg+xml and without protective headers, causing the browser to execute embedded scripts in the Parse Server origin. This can be exploited to steal session tokens from localStorage and achieve account takeover. The default fileExtensions option blocks HTML file extensions but does not block SVG, which is a well-known XSS vector. All Parse Server deployments where file upload is enabled for authenticated users (the default) are affected. This vulnerability is fixed in 9.5.2 and 8.6.17.
如何修補 CVE-2026-30948
要修補 CVE-2026-30948,請將受影響套件升級到下列已修補版本。
- —升級至 8.6.17 或更新版本
- —升級至 9.5.2-alpha.4 或更新版本
CVE-2026-30948 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 8.6.17, >= 9.0.0, < 9.5.2
- >= 9.0.0, < 9.5.2-alpha.4
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:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N |