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CVE-2023-29003
CVE ID
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CVE-2023-29003
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
SvelteKit is a web development framework. 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. While the implementation does a sufficient job in mitigating common CSRF attacks, prior to version 1.15.1, the protection can be bypassed by simply specifying a different Content-Type
header value.
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.
SvelteKit 1.15.1 updates the is_form_content_type
function call in the CSRF protection logic to include text/plain
. As additional hardening of the CSRF protection mechanism against potential method overrides, SvelteKit 1.15.1 is now performing validation on PUT
, PATCH
and DELETE
methods as well. This latter hardening is only needed to protect users who have put in some sort of ?_method= override
feature themselves in their handle
hook, so that the request that resolve sees could be PUT
/PATCH
/DELETE
when the browser issues a POST
request.
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CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below: