CVE-2021-34815 Cross-site scripting in n/a
An attacker can inject malicious scripts into the login page disclaimer, potentially stealing user credentials or session tokens.
- 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-2021-34815?
CVE-2021-34815 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 Jun 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
CheckSec Canopy before 3.5.2 allows XSS attacks against the login page via the LOGIN_PAGE_DISCLAIMER parameter.
Weakness: CWE-79
Which versions are affected by CVE-2021-34815?
It affects 1 product.
Products include Checksec Canopy.
How do I fix CVE-2021-34815?
No fix has been published for CVE-2021-34815 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-2021-34815 being exploited?
There is no known exploitation of CVE-2021-34815 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jh87-7j82-9cr2.