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Description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 26.0.0 due to improper sanitization of the `<video-player>` component. The component allows `javascript:` URIs in the `source` attribute, which are executed when the page is viewed. This enables attackers to execute arbitrary JavaScript in the context of the victim’s browser and access sensitive data such as JWT tokens and more. Version 26.0.0 fixes the issue.

PUBLISHED Reserved 2026-05-14 | Published 2026-06-05 | Updated 2026-06-05 | Assigner GitHub_M




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-116: Improper Encoding or Escaping of Output

Product status

< 26.0.0
affected

< 26.0.0
affected

References

github.com/...issues/security/advisories/GHSA-2m6p-hm3w-6jm3 exploit

github.com/...issues/security/advisories/GHSA-2m6p-hm3w-6jm3

cve.org (CVE-2026-46496)

nvd.nist.gov (CVE-2026-46496)

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