HAXcms createSite SSRF Enables Arbitrary File Read — CVE-2026-46393

Summary

### Summary An authenticated Server-Side Request Forgery (SSRF) vulnerability in HAXcms allows users to fetch arbitrary internal or local resources and write the responses to a web-accessible directory, enabling arbitrary file read and internal network access. ### Details The `createSite` endpoint in HAXcms (v11.0.6) accepts a `build.files` parameter that allows an authenticated user to supply arbitrary URLs or…

Product

npm: @haxtheweb/haxcms-nodejs

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

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