Vulnerability identifier: #VU58613
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to an error when handling CSP policies. Documents loaded with the CSP sandbox directive can escape the sandbox's script restriction by embedding additional content.
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 90.0 - 94.0.2
Firefox ESR: 91.0 - 91.3.0
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.