Vulnerability identifier: #VU60406
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 the way iframes are handled by the browser. If a document created a sandboxed iframe without
and subsequently appended an element to the iframe's document that e.g.
despite the iframe's sandbox.
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 70.0 - 96.0.3
Firefox ESR: 91.0 - 91.5.1, 78.0 - 78.15.0
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.