CVE-2020-12512 Pepper+Fuchs Comtrol IO-Link Master Cross-Site Scripting

High 7.5 Published Updated

An authenticated attacker can inject malicious scripts into the Pepperl+Fuchs Comtrol IO-Link Master web interface via reflected POST requests.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-12512?

CVE-2020-12512 is a high-severity cross-site scripting vulnerability in Pepper+Fuchs Comtrol IO-Link Master, published on 22 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to an authenticated reflected POST Cross-Site Scripting

Weakness: CWE-79

Which versions are affected by CVE-2020-12512?

It affects 12 products.

Products include Pepperl-Fuchs Io-Link Master 4-Eip Firmware, Pepperl-Fuchs Io-Link Master 4-Pnio Firmware, Pepperl-Fuchs Io-Link Master 8-Eip-L Firmware, Pepperl-Fuchs Io-Link Master 8-Eip Firmware, Pepperl-Fuchs Io-Link Master 8-Pnio-L Firmware, Pepperl-Fuchs Io-Link Master 8-Pnio Firmware and 6 more.

How do I fix CVE-2020-12512?

No fix has been published for CVE-2020-12512 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2020-12512 being exploited?

There is no known exploitation of CVE-2020-12512 in the wild and no public exploit code.

Sources

Also known as GHSA-6963-865c-fqm9.

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