CVE-2021-25810 Cross-site scripting in n/a
An attacker can execute arbitrary scripts in the victim's browser via crafted port parameters in MERCUSYS Mercury X18G 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-2021-25810?
CVE-2021-25810 is a medium-severity cross-site scripting vulnerability in n/a, published on 29 Apr 2021. 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
Cross site Scripting (XSS) vulnerability in MERCUSYS Mercury X18G 1.0.5 devices, via crafted values to the 'src_dport_start', 'src_dport_end', and 'dest_port' parameters.
Weakness: CWE-79
Which versions are affected by CVE-2021-25810?
It affects 1 product.
Products include Mercusys Mercury X18g Firmware.
How do I fix CVE-2021-25810?
No fix has been published for CVE-2021-25810 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-2021-25810 being exploited?
There is no known exploitation of CVE-2021-25810 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-xmf3-54fg-fhvv.