What is CVE-2025-6235?

CVE-2025-6235 is a medium-severity vulnerability in Extreme Networks Extremecontrol, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-07-21.

How severe is CVE-2025-6235?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Extreme Networks Extremecontrol

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Extreme Networks Extremecontrol — versions 25.2.12
Extremenetworks Extremecontrol

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

1c053176-eef3-4d6a-ae0b-24728c86587b (Vendor Advisory)

Frequently asked questions

What is CVE-2025-6235?: CVE-2025-6235 is a medium-severity vulnerability in Extreme Networks Extremecontrol, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-07-21.
How severe is CVE-2025-6235?: Medium severity. CVSS v3 base score is 6.1 out of 10.