CVE-2026-22704Public exploitNetwork attack vector

Administrator takeover via executable HTML uploads

Published Jan 10, 2026 · Updated Jan 10, 2026

Stored XSS in HAXTheWeb HAXcms (PHP) 11.0.6 to before 25.0.0 allows remote authenticated users to take over administrator accounts. The saveFile upload path accepts an HTML file that is served inline from the HAXcms origin, so its script can call refreshAccessToken with an administrator's cookie and read the returned JWT. Exploitation requires upload access and an administrator to visit the uploaded file; the stolen token grants full application control.

CVSS severity8.0
High
EPSS probability1.04%
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 HAXTheWeb HAXcms (PHP) 11.0.6 to before 25.0.0 allows remote authenticated users to take over administrator accounts. The saveFile upload path accepts an HTML file that is served inline from the HAXcms origin, so its script can call refreshAccessToken with an administrator's cookie and read the returned JWT. Exploitation requires upload access and an administrator to visit the uploaded file; the stolen token grants full application control.

The record

CVE
CVE-2026-22704
Published
Jan 10, 2026
Updated
Jan 10, 2026
Vendor
HAXTheWeb
Product
HAXcms (PHP)
Classifications
CWE-79, T1190, T1528
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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=>= 11.0.6, < 25.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HAXTheWeb · HAXcms (PHP)version=>= 11.0.6, < 25.0.0

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
8.0GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

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')
T1190Exploit Public-Facing Application
T1528Steal Application Access Token

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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