CVE-2021-43659 Cross-site scripting in n/a
Attackers can upload malicious HTML files via the avatar feature to execute stored XSS attacks against other users.
- 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-2021-43659?
CVE-2021-43659 is a medium-severity cross-site scripting vulnerability in n/a, published on 24 Mar 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
In halo 1.4.14, the function point of uploading the avatar, any file can be uploaded, such as uploading an HTML file, which will cause a stored XSS vulnerability.
Weakness: CWE-79
Which versions are affected by CVE-2021-43659?
It affects 1 product.
Products include Halo Halo.
How do I fix CVE-2021-43659?
No fix has been published for CVE-2021-43659 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-2021-43659 being exploited?
There is no known exploitation of CVE-2021-43659 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-hgpr-6pp6-qx23.