CVE-2025-6235: extremecontrol XSS — Fix

Description

In ExtremeControl before 25.5.12, a cross-site scripting (XSS) vulnerability was discovered in a login interface of the affected application. The issue stems from improper handling of user-supplied input within HTML attributes, allowing an attacker to inject script code that may execute in a user's browser under specific interaction conditions. Successful exploitation could lead to exposure of user data or unauthorized actions within the browser context.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
extremenetworks	extremecontrol	< 25.5.12

References

Advisories & Patches

https://extreme-networks.my.site.com/ExtrArticleDetail?an=000128019

Frequently Asked Questions

What is CVE-2025-6235? +

In ExtremeControl before 25.5.12, a cross-site scripting (XSS) vulnerability was discovered in a login interface of the affected application. The issue stems from improper handling of user-supplied input within HTML attributes, allowing an attacker to inject script code that may execute in a user's browser under specific interaction conditions. Successful exploitation could lead to exposure of user data or unauthorized actions within the browser context. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-6235? +

CVE-2025-6235 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-6235? +

CVE-2025-6235 affects products from extremenetworks, specifically: extremecontrol. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-6235? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-6235