CVE-2018-20503 Cross-site scripting in n/a
Cross-site scripting vulnerability in Allied Telesis 8100L/8 devices allows attackers to inject scripts via specific parameters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-20503?
CVE-2018-20503 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 May 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Allied Telesis 8100L/8 devices allow XSS via the edit-ipv4_interface.php vlanid or subnet_mask parameter.
Weakness: CWE-79
Which versions are affected by CVE-2018-20503?
It affects 1 product.
Products include Alliedtelesis 8100l\/8 Firmware.
How do I fix CVE-2018-20503?
No fix has been published for CVE-2018-20503 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-2018-20503 being exploited?
There is no known exploitation of CVE-2018-20503 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Sources
Also known as GHSA-rppp-89x8-v2j3.