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Vulnerabilities

Vulnerability · CVE-2026-48527

HAX CMS helps manage microsite universe with PHP or NodeJs backends.

Published May 29, 2026 · catalog updated Jul 21, 2026 · HAX CMS helps manage

Check if you run it

No confirmed exploitation is on record for CVE-2026-48527. EPSS is 0.37%. Act only if a listed version of HAX CMS helps manage is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (HAX CMS helps manage).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Version ranges on file
Affected products
stated named in the record

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 26.0.0

How to fix CVE-2026-48527

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-48527. EPSS is 0.37%. Act only if a listed version of HAX CMS helps manage is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 26.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 29, 2026 · NIST NVD

    Detected

    HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms

  2. Jul 21, 2026 · NIST NVD

    Updated

    HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms

Sources

  • CVE.orgVulnerability recordCVE-2026-48527

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-48527

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-48527

    HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the endpoint. An authenticated user with a permission to edit pages can bypass the

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.