CVE-2021-26549 Cross-site scripting in n/a
An attacker can execute arbitrary HTML code in a user's browser via the AdminTool console in SmartFoxServer, potentially leading to session hijacking.
- 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-2021-26549?
CVE-2021-26549 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Feb 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
An XSS issue was discovered in SmartFoxServer 2.17.0. Input passed to the AdminTool console is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML code in a user's browser session in context of an affected site.
Weakness: CWE-79
Which versions are affected by CVE-2021-26549?
It affects 1 product.
Products include Smartfoxserver Smartfoxserver.
How do I fix CVE-2021-26549?
No fix has been published for CVE-2021-26549 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-2021-26549 being exploited?
There is no known exploitation of CVE-2021-26549 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-g9m2-w2m7-c5ff.