HAX CMS: Stored XSS via '<video-player>' component allows arbitrary JavaScript execution and token theft
CVE-2026-46496

9.3CRITICAL

Key Information:

Vendor

Haxtheweb

Status
Haxcms-nodejs
Video-player
Vendor
CVE Published:
5 June 2026

What is CVE-2026-46496?

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.

Affected Version(s)

haxcms-nodejs < 26.0.0

video-player < 26.0.0

References

https://github.com/haxtheweb/issues/security/advisories/G...
x_refsource_CONFIRM

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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