CVE-2026-30948— Parse Server has stored cross-site scripting (XSS) via SVG file upload
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I. Basic Information for CVE-2026-30948
Vulnerability Information
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Vulnerability Title
Parse Server has stored cross-site scripting (XSS) via SVG file upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.4 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-alpha.4 and 8.6.17.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Parse Server 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.5.2-alpha.4之前版本和8.6.17之前版本存在跨站脚本漏洞，该漏洞源于上传SVG文件时清理和转义不足，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| parse-community | parse-server | >= 9.0.0 < 9.5.2-alpha.4 | - |
II. Public POCs for CVE-2026-30948
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|---|
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- Release 8.6.17 · parse-community/parse-server · GitHubx_refsource_MISC
- Release 9.5.2-alpha.4 · parse-community/parse-server · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-30948
Same Patch Batch · parse-community · 2026-03-10 · 14 CVEs total
| CVE-2026-30966 | 10.0 CRITICAL | Parse Server role escalation and CLP bypass via direct `_Join` table write |
| CVE-2026-30939 | Parse Server has Denial of Service (DoS) and Cloud Function Dispatch Bypass via Prototype | |
| CVE-2026-30941 | Parse Server has a NoSQL injection via token type in password reset and email verification | |
| CVE-2026-30938 | Parse Server has denylist `requestKeywordDenylist` keyword scan bypass through nested obje | |
| CVE-2026-30949 | Parse Server is missing audience validation in Keycloak authentication adapter | |
| CVE-2026-30946 | Parse Server affected by denial-of-service via unbounded query complexity in REST and Grap | |
| CVE-2026-30947 | Parse Server ha a bypass of class-level permissions in LiveQuery | |
| CVE-2026-31800 | Parse Server: Classes `_GraphQLConfig` and `_Audience` master key bypass via generic class | |
| CVE-2026-30972 | Parse Server has a rate limit bypass via batch request endpoint | |
| CVE-2026-30962 | Parse Server has a protected fields bypass via logical query operators | |
| CVE-2026-30967 | Parse Server OAuth2 authentication adapter account takeover via identity spoofing | |
| CVE-2026-30965 | Parse Server session token exfiltration via `redirectClassNameForKey` query parameter | |
| CVE-2026-31828 | Parse Server has an LDAP injection via unsanitized user input in DN and group filter const |
IV. Related Vulnerabilities
Same product: parse-server
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
Same vendor: parse-community
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
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