CVE-2025-6235

ExtremeControl (NAC) 'onmouseover' XSS

Published Jul 21, 2025 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Fixed in 25.5.12 or later.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-22104 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.
History
Type Values Removed Values Added
First Time appeared Extremenetworks
Extremenetworks extremecontrol
CPEs cpe:2.3:a:extremenetworks:extremecontrol:*:*:*:*:*:*:*:*
Vendors & Products Extremenetworks
Extremenetworks extremecontrol
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title ExtremeControl (NAC) 'onmouseover' XSS
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ExtremeNetworks
Published
Updated
Jul 21, 2025, 8:03 PM
Reserved
Jun 18, 2025, 1:40 PM
Status
Analyzed
Published
Jul 21, 2025, 2:15 PM
Modified
Jun 17, 2026, 10:01 AM