CVE-2021-37393 Cross-site scripting in n/a
Attackers can inject stored XSS payloads via the nickname field, allowing execution of malicious scripts when other users view articles.
- 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-2021-37393?
CVE-2021-37393 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Jul 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In RPCMS v1.8 and below, the "nickname" variable is not properly sanitized before being displayed on page. Attacker can use "update password" function to inject XSS payloads into nickname variable, and achieve stored XSS. Users who view the articles published by the injected user will trigger the XSS.
Weakness: CWE-79
Which versions are affected by CVE-2021-37393?
It affects 1 product.
Products include Rpcms Rpcms.
How do I fix CVE-2021-37393?
No fix has been published for CVE-2021-37393 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-2021-37393 being exploited?
There is no known exploitation of CVE-2021-37393 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4g3q-mj64-82x3.