CVE-2025-50740 Cross-site scripting in n/a
An attacker can execute arbitrary HTML/JS code in the AutoConnect web interface by crafting a malicious network SSID, potentially compromising IoT devices.
- 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-2025-50740?
CVE-2025-50740 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Aug 2025. 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
AutoConnect 1.4.2, an Arduino library, is vulnerable to a cross site scripting (xss) vulnerability. The AutoConnect web interface /_ac/config allows HTML/JS code to be executed via a crafted network SSID.
Weakness: CWE-79
Which versions are affected by CVE-2025-50740?
How do I fix CVE-2025-50740?
No fix has been published for CVE-2025-50740 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-2025-50740 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50740 exists.
Sources
Also known as GHSA-w65f-mpfc-hjgq.