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CVE-2023-29008

27
FAUCET Score

CVE-2023-29008 is a Cross-Site Request Forgery (CSRF) bypass vulnerability affecting SvelteKit versions prior to 1.15.2. It allows attackers to bypass SvelteKit's built-in CSRF protection by using an upper-cased Content-Type header, enabling malicious requests from third-party domains. This vulnerability has a CVSS score of 8.8 (High), indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or significant community discussion, the vulnerability could lead to unauthorized account access under specific SameSite cookie configurations and browser conditions.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.15.2CPE matchmatch criteria
cpe:2.3:a:svelte:sveltekit:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 34th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @sveltejs/kitFixed in: 1.15.2

Vendor Advisories (1)

npmGHSA-gv7g-x59x-wf8fhigh

SvelteKit framework has Insufficient CSRF protection for CORS requests

Apr 7, 2023

References

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