#VU60397 Improper control of a resource through its lifetime in Mozilla Firefox - CVE-2022-22755

Vulnerability identifier: #VU60397

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-22755

CWE-ID: CWE-664

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the way XSL documents are handled by the browser. A remote attacker can trick the victim to load a specially crafted XSL document that can continue JavaScript execution within the bounds of the same-origin policy even after the browser tab is closed.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 92.0 - 96.0.3

---

External links
https://www.mozilla.org/en-US/security/advisories/mfsa2022-04/

---

Q & A

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.