CVE-2021-23836 Cross-site scripting in n/a
An admin user can inject malicious scripts into the SMTP password field, which execute in other users' browsers when viewing the module page.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-23836?
CVE-2021-23836 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
An issue was discovered in flatCore before 2.0.0 build 139. A stored XSS vulnerability was identified in the prefs_smtp_psw HTTP request body parameter for the acp interface. An admin user can inject malicious client-side script into the affected parameter without any form of input sanitization. The injected payload will be executed in the browser of a user whenever one visits the affected module page.
Weakness: CWE-79
Which versions are affected by CVE-2021-23836?
It affects 1 product.
Products include Flatcore Flatcore.
How do I fix CVE-2021-23836?
No fix has been published for CVE-2021-23836 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-2021-23836 being exploited?
There is no known exploitation of CVE-2021-23836 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-2843-wghw-w3qp.