CVE-2025-6235

ExtremeControl (NAC) 'onmouseover' XSS

CVSS 5.3 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 Jul 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Extreme Networks · ExtremeControl

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

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