CVE-2021-39427 Cross-site scripting in n/a
Attackers can execute arbitrary code via a cross-site scripting vulnerability in the username parameter of the registration page.
- 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-2021-39427?
CVE-2021-39427 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Dec 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross site scripting vulnerability in 188Jianzhan 2.10 allows attackers to execute arbitrary code via the username parameter to /admin/reg.php.
Weakness: CWE-79
Which versions are affected by CVE-2021-39427?
It affects 1 product.
Products include Vtimecn 188jianzhan.
How do I fix CVE-2021-39427?
No fix has been published for CVE-2021-39427 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-2021-39427 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-39427 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-69gq-wgxm-h274.