CVE-2020-12256 Cross-site scripting in n/a
Reflected XSS in rConfig allows attackers to execute arbitrary JavaScript via the deviceId parameter, potentially leading to session hijacking or malicious actions.
- 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-2020-12256?
CVE-2020-12256 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 May 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
rConfig 3.9.4 is vulnerable to reflected XSS. The devicemgmnt.php file improperly validates user input. An attacker can exploit this by crafting arbitrary JavaScript in the deviceId GET parameter to devicemgmnt.php.
Weakness: CWE-79
Which versions are affected by CVE-2020-12256?
It affects 1 product.
Products include Rconfig Rconfig.
How do I fix CVE-2020-12256?
No fix has been published for CVE-2020-12256 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-2020-12256 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-12256 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in n/a
Sources
Also known as GHSA-cw43-3hjf-j7v7.