CVE-2021-39496 Cross-site scripting in n/a
Attackers can inject malicious scripts via the filename parameter in Eyoucms, potentially leading to session hijacking or code execution.
- 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-2021-39496?
CVE-2021-39496 is a medium-severity cross-site scripting vulnerability in Eyoucms Eyoucms, published on 7 Sep 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
Eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject malicious code into `filename` param to trigger Reflected XSS.
Weakness: CWE-79
Which versions are affected by CVE-2021-39496?
It affects 1 product.
Products include Eyoucms Eyoucms.
How do I fix CVE-2021-39496?
No fix has been published for CVE-2021-39496 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-2021-39496 being exploited?
There is no known exploitation of CVE-2021-39496 in the wild and no public exploit code.
Other vulnerabilities in Eyoucms Eyoucms
Sources
Also known as GHSA-qgx9-8p23-fhf6.