CVE-2020-12517 Cross-site scripting in AXC F 1152 (1151412)
Authenticated low-privileged users can inject JavaScript to escalate privileges to admin when an administrator visits the device website.
- 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-2020-12517?
CVE-2020-12517 is a high-severity cross-site scripting vulnerability in Phoenix Contact AXC F 1152 (1151412), published on 17 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an authenticated low privileged user could embed malicious Javascript code to gain admin rights when the admin user visits the vulnerable website (local privilege escalation).
Weakness: CWE-79
Which versions are affected by CVE-2020-12517?
It affects 1 product.
Products include Phoenixcontact Plcnext Firmware.
How do I fix CVE-2020-12517?
No fix has been published for CVE-2020-12517 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-2020-12517 being exploited?
There is no known exploitation of CVE-2020-12517 in the wild and no public exploit code.
Other vulnerabilities in Phoenix Contact AXC F 1152 (1151412)
Sources
Also known as GHSA-hwm9-775j-vf84.