Medium severity · published Jun 5, 2026
CVE-2026-46357
HAX CMS NodeJS application Vulnerable to Denial of Service using Malicious Import Request
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
haxcms-nodejs · haxtheweb
< 26.0.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46357
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46357
github.com
https://github.com/haxtheweb/issues/security/advisories/GHSA-9r33-xhw8-4qqp
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