How severe is CVE-2025-49137?

CVE-2025-49137 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-49137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-49137?

CVE-2025-49137 primarily affects Psu Haxcms-nodejs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-49137?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-49137 have an EU (EUVD) identifier?

Yes. CVE-2025-49137 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17562.

When was CVE-2025-49137 published?

CVE-2025-49137 was published on 2025-06-09 and last updated on 2026-06-17.

CVE-2025-49137

CVE-2025-49137 is a high-severity vulnerability in Psu Haxcms-nodejs with a CVSS 3.x base score of 8.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17562
Weakness: CWE-79
Affected product: Psu Haxcms-nodejs
Published: 2025-06-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-49137?: 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.
How severe is CVE-2025-49137?: CVE-2025-49137 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-49137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-49137?: CVE-2025-49137 primarily affects Psu Haxcms-nodejs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-49137?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-49137 have an EU (EUVD) identifier?: Yes. CVE-2025-49137 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17562.
When was CVE-2025-49137 published?: CVE-2025-49137 was published on 2025-06-09 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:psu:haxcms-nodejs:*:*:*:*:*:node.js:*:*
cpe:2.3:a:psu:haxcms-php:*:*:*:*:*:*:*:*

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