Vulnerability details
CVE-2026-46396
haxtheweb haxcms-nodejshaxtheweb iframe-loaderhaxtheweb video-player
HAX CMS has a stored XSS via <iframe> that allows access to sensitive client-side data and account takeover
CVSS 4.0
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| haxtheweb | haxcms-nodejs | < 26.0.0 | CVEProject cvelistV5 (CNA) |
| haxtheweb | iframe-loader | < 26.0.0 | CVEProject cvelistV5 (CNA) |
| haxtheweb | video-player | < 26.0.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/haxtheweb/issues/security/advisories/GHSA-jh3h-rpxg-fr36 x_refsource_CONFIRM
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Details
- Published
- 2026-06-05
- Last updated
- 2026-06-09
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.23%
Probability of exploitation in 30 days
13.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')