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CVE-2025-49137

Hax CMS Stored Cross-Site Scripting vulnerability

Published: Jun 9, 2025Updated: Jul 30, 2025 Sources: CVE List NVD GHSACWE-79
NVD MITRE
8.5CVSSHIGH
EPSS Score
0.2%
Top 86.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

HAX CMS PHP allows users to manage their microsite universe with a PHP backend. Prior to version 11.0.0, the application does not sufficiently sanitize user input, allowing for the execution of arbitrary JavaScript code. The 'saveNode' and 'saveManifest' endpoints take user input and store it in the JSON schema for the site. This content is then rendered in the generated HAX site. Although the application does not allow users to supply a `script` tag, it does allow the use of other HTML tags to run JavaScript. Version 11.0.0 fixes the issue.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79CWE-80CWE-87

Affected Products

haxcms-nodejspsu
Mixed
Web & CMS Plugins / cms-core
haxcms-phppsu
Mixed
Web & CMS Plugins / cms-core
elmsln/haxcmsPackagistOSS Libraries
issueshaxtheweb
On-prem
Web & CMS Plugins / cms-core
psuWeb & CMS Pluginsaka haxcms-nodejs, haxcms-php, haxiam
packagistpackage-ecosystemOSS Libraries
haxthewebcommercialWeb & CMS Pluginsaka haxcms-php, haxcms-nodejs, haxcms

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/haxtheweb/haxcms-php/commit/0dd3e98fe2fadd0793b667d4af2aac230980e0f8
github.com
https://github.com/haxtheweb/issues/security/advisories/GHSA-2vc4-3hx7-v7v7
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-49137
nvd.nist.gov
and 1 more references View all →

Timeline

Published
Jun 9, 2025
Last Updated
Jul 30, 2025

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