CVE-2021-23955 Other in Firefox
An attacker can exploit pointer lock state confusion to perform clickjacking attacks in Firefox, requiring users to upgrade to a patched version.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-23955?
CVE-2021-23955 is a medium-severity vulnerability in Mozilla Firefox, published on 26 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The browser could have been confused into transferring a pointer lock state into another tab, which could have lead to clickjacking attacks. This vulnerability affects Firefox < 85.
Weakness: CWE-1021
Which versions are affected by CVE-2021-23955?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2021-23955?
Upgrade to a fixed version.
Is CVE-2021-23955 being exploited?
There is no known exploitation of CVE-2021-23955 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-jf2q-69fh-6qqg, UBUNTU-CVE-2021-23955.