CVE-2026-46496: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in haxtheweb haxcms-nodejs
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.
AI Analysis
Technical Summary
CVE-2026-46496 is a critical stored cross-site scripting vulnerability in haxtheweb's haxcms-nodejs product affecting all versions prior to 26.0.0. The vulnerability is due to improper neutralization of input in the <video-player> component, specifically allowing javascript: URIs in the source attribute. When exploited, this enables arbitrary JavaScript execution in the victim's browser, compromising sensitive information. The vulnerability has a CVSS 4.0 score of 9.3, indicating high exploitability and impact. The issue is fixed in version 26.0.0.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser, potentially leading to theft of sensitive information such as JWT tokens and other data accessible via the browser session. This can result in account compromise or unauthorized actions performed on behalf of the victim.
Mitigation Recommendations
Upgrade haxcms-nodejs to version 26.0.0 or later, where the vulnerability has been fixed by properly sanitizing the <video-player> component's source attribute to disallow javascript: URIs. Patch status is confirmed by the vendor's versioning information. No other official remediation details are provided.
CVE-2026-46496: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in haxtheweb haxcms-nodejs
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.
CVSS v4.0
Score 9.3critical
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-46496 is a critical stored cross-site scripting vulnerability in haxtheweb's haxcms-nodejs product affecting all versions prior to 26.0.0. The vulnerability is due to improper neutralization of input in the <video-player> component, specifically allowing javascript: URIs in the source attribute. When exploited, this enables arbitrary JavaScript execution in the victim's browser, compromising sensitive information. The vulnerability has a CVSS 4.0 score of 9.3, indicating high exploitability and impact. The issue is fixed in version 26.0.0.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser, potentially leading to theft of sensitive information such as JWT tokens and other data accessible via the browser session. This can result in account compromise or unauthorized actions performed on behalf of the victim.
Mitigation Recommendations
Upgrade haxcms-nodejs to version 26.0.0 or later, where the vulnerability has been fixed by properly sanitizing the <video-player> component's source attribute to disallow javascript: URIs. Patch status is confirmed by the vendor's versioning information. No other official remediation details are provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-14T18:06:06.811Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a231d8ee29bf47b50a98413
Added to database: 6/5/2026, 7:03:42 PM
Last enriched: 6/5/2026, 7:18:42 PM
Last updated: 6/5/2026, 9:22:25 PM
Views: 7
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