HAX CMS has a stored XSS via <iframe> that allows access to sensitive client-side data and account takeover
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| haxtheweb | haxcms-nodejs | before 26.0.0 | 26.0.0 | Patch available | CNA |
| haxtheweb | video-player | before 26.0.0 | 26.0.0 | Patch available | CNA |
| haxtheweb | iframe-loader | before 26.0.0 | 26.0.0 | Patch available | CNA |
| — | @haxtheweb/haxcms-nodejs (npm) | before 26.0.0 | 26.0.0 | Patch available | GHSA-jh3h-rpxg-fr36 |
| — | @haxtheweb/video-player (npm) | before 26.0.0 | 26.0.0 | Patch available | GHSA-jh3h-rpxg-fr36 |
| — | @haxtheweb/iframe-loader (npm) | before 26.0.0 | 26.0.0 | Patch available | GHSA-jh3h-rpxg-fr36 |
- haxcms-nodejs Vendorhaxtheweb Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA
- video-player Vendorhaxtheweb Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA
- iframe-loader Vendorhaxtheweb Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA
- @haxtheweb/haxcms-nodejs (npm) Vendor— Affected before 26.0.0 Fixed in 26.0.0 Patch available GHSA-jh3h-rpxg-fr36
- @haxtheweb/video-player (npm) Vendor— Affected before 26.0.0 Fixed in 26.0.0 Patch available GHSA-jh3h-rpxg-fr36
- @haxtheweb/iframe-loader (npm) Vendor— Affected before 26.0.0 Fixed in 26.0.0 Patch available GHSA-jh3h-rpxg-fr36
Remediation
- Fix · CNA haxcms-nodejs (haxtheweb) Fixed in 26.0.0
- Fix · CNA video-player (haxtheweb) Fixed in 26.0.0
- Fix · CNA iframe-loader (haxtheweb) Fixed in 26.0.0
- Fix · GHSA-jh3h-rpxg-fr36 @haxtheweb/haxcms-nodejs (npm) Fixed in 26.0.0 Advisory →
- Fix · GHSA-jh3h-rpxg-fr36 @haxtheweb/video-player (npm) Fixed in 26.0.0 Advisory →
- Fix · GHSA-jh3h-rpxg-fr36 @haxtheweb/iframe-loader (npm) Fixed in 26.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46396
- 2026-10-03 Alias added: GHSA-jh3h-rpxg-fr36
References
More haxtheweb vulnerabilities
- TI-2026-34109 HAX CMS Vulnerable to Private Key Disclosure via Broken HMAC Implementation CVSS 4.0CRITICAL 9.3
- TI-2026-34105 HAX open-apis: Credential Theft via Server-Side Request Forgery (SSRF) in open-apis CVSS 4.0HIGH 8.7
- TI-2026-27339 HAX CMS's public /server-status endpoint exposes authentication tokens, user activity, and client IP addresses CVSS 4.0HIGH 8.7
- TI-2026-34113 Authenticated Remote Code Execution via File Overwrite CVSS 4.0CRITICAL 9.4
- TI-2025-23152 HAX CMS PHP allows Insecure File Upload to Lead to Remote Code Execution CVSS 3.1CRITICAL 10.0
- TI-2026-34194 HAX CMS: Stored XSS via '<video-player>' component allows arbitrary JavaScript execution and token theft CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-46396 · CVE Program
- CVE-2026-46396 · NVD
- FIRST EPSS
- GHSA-jh3h-rpxg-fr36 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences