CVE-2026-46396

CRITICAL

HAX CMS <26.0.0 iframe Handling - Stored Cross-Site Scripting

Title source: manual
STIX 2.1

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 `<iframe>` elements. The application allows `javascript:` URIs in the `src` attribute, which are executed when a malicious page is viewed. This enables attackers to execute arbitrary JavaScript in the context of the victim’s browser and access sensitive data exposed to client-side scripts. Version 26.0.0 fixes the issue.

References (1)

Core 1
Core References

Scores

CVSS v4 9.3
EPSS 0.0023
EPSS Percentile 13.6%
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (6)
haxtheweb/haxcms-nodejs 0 - 26.0.0npm
haxtheweb/haxcms-nodejs < 26.0.0
haxtheweb/iframe-loader 0 - 26.0.0npm
haxtheweb/iframe-loader < 26.0.0
haxtheweb/video-player 0 - 26.0.0npm
haxtheweb/video-player < 26.0.0
Published Jun 05, 2026
Tracked Since Jun 06, 2026