Current Description

The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a `+server.js` file, containing endpoint handlers for different HTTP methods. SvelteKit provides out-of-the-box cross-site request forgery (CSRF) protection to its users. The protection is implemented at `kit/src/runtime/server/respond.js`. While the implementation does a sufficient job of mitigating common CSRF attacks, the protection can be bypassed in versions prior to 1.15.2 by simply specifying an upper-cased `Content-Type` header value. The browser will not send uppercase characters, but this check does not block all expected CORS requests. If abused, this issue will allow malicious requests to be submitted from third-party domains, which can allow execution of operations within the context of the victim's session, and in extreme scenarios can lead to unauthorized access to users’ accounts. This may lead to all POST operations requiring authentication being allowed in the following cases: If the target site sets `SameSite=None` on its auth cookie and the user visits a malicious site in a Chromium-based browser; if the target site doesn't set the `SameSite` attribute explicitly and the user visits a malicious site with Firefox/Safari with tracking protections turned off; and/or if the user is visiting a malicious site with a very outdated browser. SvelteKit 1.15.2 contains a patch for this issue. It is also recommended to explicitly set `SameSite` to a value other than `None` on authentication cookies especially if the upgrade cannot be done in a timely manner.

View Analysis Description

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA:  GitHub, Inc.

Base Score:  8.8 HIGH

Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://github.com/sveltejs/kit/commit/ba436c6685e751d968a960fbda65f24cf7a82e9f	Patch
https://github.com/sveltejs/kit/security/advisories/GHSA-gv7g-x59x-wf8f	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-352	Cross-Site Request Forgery (CSRF)	NIST
CWE-918	Server-Side Request Forgery (SSRF)	GitHub, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

CVE Modified by GitHub, Inc. 5/14/2024 8:52:11 AM

Action	Type	Old Value	New Value

CVE Modified by GitHub, Inc. 11/06/2023 11:11:00 PM

Action	Type	Old Value	New Value
Changed	Description	Record truncated, showing 500 of 1595 characters. View Entire Change Record The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a `+server.js` file, containing endpoint handlers for different HTTP methods. SvelteKit provides out-of-the-box cross-site request forgery (CSRF) protection to its users. The protection is implemented at `kit/src/runtime/server/respond.js`. While the implementation does a sufficient job of mitigating common CSRF attacks, the protection can be bypassed in versions prior to 1.15.2 by simply spe	Record truncated, showing 500 of 1598 characters. View Entire Change Record The SvelteKit framework offers developers an option to create simple REST APIs. This is done by defining a `+server.js` file, containing endpoint handlers for different HTTP methods. SvelteKit provides out-of-the-box cross-site request forgery (CSRF) protection to its users. The protection is implemented at `kit/src/runtime/server/respond.js`. While the implementation does a sufficient job of mitigating common CSRF attacks, the protection can be bypassed in versions prior to 1.15.2 by simply sp

Initial Analysis by NIST 4/14/2023 11:52:16 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR *cpe:2.3:a:svelte:sveltekit:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.15.2
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-352
Changed	Reference Type	https://github.com/sveltejs/kit/commit/ba436c6685e751d968a960fbda65f24cf7a82e9f No Types Assigned	https://github.com/sveltejs/kit/commit/ba436c6685e751d968a960fbda65f24cf7a82e9f Patch
Changed	Reference Type	https://github.com/sveltejs/kit/security/advisories/GHSA-gv7g-x59x-wf8f No Types Assigned	https://github.com/sveltejs/kit/security/advisories/GHSA-gv7g-x59x-wf8f Vendor Advisory