CVE-2023-2521 NEXTU NEXT-7004N POST Request formFilter cross site scripting
Remote attackers can execute arbitrary scripts via the url parameter in the formFilter handler of NEXTU NEXT-7004N devices.
- 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-2023-2521?
CVE-2023-2521 is a low-severity cross-site scripting vulnerability in NEXTU NEXT-7004N, published on 4 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in NEXTU NEXT-7004N 3.0.1. It has been classified as problematic. Affected is an unknown function of the file /boafrm/formFilter of the component POST Request Handler. The manipulation of the argument url with the input <svg onload=alert(1337)> leads to cross site scripting. It is possible to launch the attack remotely. The identifier of this vulnerability is VDB-228012. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-79
Which versions are affected by CVE-2023-2521?
It affects 1 product.
Products include Ez-Net Next-7004n Firmware.
How do I fix CVE-2023-2521?
No fix has been published for CVE-2023-2521 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-2023-2521 being exploited?
There is no known exploitation of CVE-2023-2521 in the wild and no public exploit code.
Sources
Also known as GHSA-43x4-4r99-6r59.