CVE-2020-18305 Missing authorization in n/a

High 8.0 Published 13 May 2024 Updated 13 Feb 2025

Attackers can access sensitive information or escalate privileges via unrestricted URL access in the Extreme Networks EXOS Web GUI.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2020-18305?

CVE-2020-18305 is a high-severity missing authorization vulnerability in n/a, published on 13 May 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Extreme Networks EXOS before v.22.7 and before v.30.2 was discovered to contain an issue in its Web GUI which fails to restrict URL access, allowing attackers to access sensitive information or escalate privileges.

Weakness: CWE-287

Which versions are affected by CVE-2020-18305?

It affects 1 product.

Products include Extremenetworks Extremexos.

How do I fix CVE-2020-18305?

No fix has been published for CVE-2020-18305 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-18305 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-18305 exists.

Sources

Also known as GHSA-g9vx-vfc5-9mgj.