CVE-2026-46357Public exploitNetwork attack vector

Authenticated server crash via missing filename dereference

Published Jun 5, 2026 · Updated Jun 5, 2026

Denial of service in HAXTheWeb HAXcms (NodeJS) before 26.0.0 allows remote authenticated users to crash the server via createSite. The import flow passes a file object without originalname to HAXCMSFile.save(), which immediately calls replace() on the missing property and terminates the Node.js process. A valid account and request tokens are required; one request interrupts service for all users until the server is manually restarted.

CVSS severity6.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in HAXTheWeb HAXcms (NodeJS) before 26.0.0 allows remote authenticated users to crash the server via createSite. The import flow passes a file object without originalname to HAXCMSFile.save(), which immediately calls replace() on the missing property and terminates the Node.js process. A valid account and request tokens are required; one request interrupts service for all users until the server is manually restarted.

The record

CVE
CVE-2026-46357
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
HAXTheWeb
Product
HAXcms (NodeJS)
Classifications
CWE-20, CWE-476, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 26.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HAXTheWeb · HAXcms (NodeJS)version=< 26.0.0

Published CVSS scores

6.5GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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