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

Severity: high (CVSS 7.1 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-05 · updated 2026-06-17
Weakness: CWE-918

Description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. An authenticated Server-Side Request Forgery (SSRF) vulnerability in versions prior to 26.0.0 allows authenticated 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. Version 26.0.0 contains a fix.

Affected products

haxtheweb haxcms-nodejs: before 26.0.0
haxtheweb haxcms-php: before 26.0.0

References

https://github.com/haxtheweb/issues/security/advisories/GHSA-q862-gcgq-5m6g
https://github.com/haxtheweb/issues/security/advisories/GHSA-q862-gcgq-5m6g

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