PT-2023-22082 · Sveltekit · Sveltekit
Ry0Tak
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Published
2023-04-06
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Updated
2023-04-14
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CVE-2023-29008
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
SvelteKit versions prior to 1.15.2
Description
The SvelteKit framework provides out-of-the-box cross-site request forgery (CSRF) protection. However, this protection can be bypassed in versions prior to 1.15.2 by specifying an upper-cased
Content-Type header value. This allows malicious requests to be submitted from third-party domains, potentially leading to unauthorized access to users' accounts. The issue can be exploited in certain scenarios, such as when the target site sets SameSite=None on its auth cookie and the user visits a malicious site in a Chromium-based browser, or when 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.Recommendations
For versions prior to 1.15.2, update to SvelteKit 1.15.2 to patch the issue. Additionally, explicitly set
SameSite to a value other than None on authentication cookies, especially if the upgrade cannot be done in a timely manner.Exploit
Fix
SSRF
CSRF
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Related Identifiers
Affected Products
Sveltekit