CVE-2023-29008 — The SvelteKit framework offers developers an option to create simple REST APIs

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
sveltejs	kit	< 1.15.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-04-06T16:36:50.972Z
• Last modified: 2025-02-10T16:26:25.826Z

09References

• github.com — https://github.com/sveltejs/kit/security/advisories/GHSA-gv7g-x59x-wf8f
• github.com — https://github.com/sveltejs/kit/commit/ba436c6685e751d968a960fbda65f24cf7a82e9f