CVE-2026-46396Public exploitNetwork attack vector

Account takeover via unsanitized iframe source

Published Jun 5, 2026 · Updated Jun 5, 2026

Stored XSS in HAX CMS before 26.0.0 allows remote authenticated users to execute JavaScript when a victim views crafted content. The content sanitizer preserves executable javascript URI or srcdoc content in iframe source attributes instead of rejecting it. Any authenticated content author can store the payload; victim interaction exposes browser-readable tokens and permits actions in the victim's session.

CVSS severity8.6
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in HAX CMS before 26.0.0 allows remote authenticated users to execute JavaScript when a victim views crafted content. The content sanitizer preserves executable javascript URI or srcdoc content in iframe source attributes instead of rejecting it. Any authenticated content author can store the payload; victim interaction exposes browser-readable tokens and permits actions in the victim's session.

The record

CVE
CVE-2026-46396
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
HAX The Web
Product
@haxtheweb/video-player
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 26.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HAX The Web · @haxtheweb/video-playerversion=< 26.0.0
HAX The Web · @haxtheweb/iframe-loaderversion=< 26.0.0
HAXTheWeb · HAXcms (NodeJS)version=< 26.0.0

Published CVSS scores

8.6GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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