Vulnerability identifier: #VU12556

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5172

CWE-ID: CWE-264

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 security restrictions on the target system.

The weakness exists due to the Live Bookmarks page and the PDF viewer can run injected script content from the clipboard. A remote attacker can trick the victim into coping and pasting script from the clipboard into the Live Bookmarks page and the PDF viewer while viewing RSS feeds or PDF files and run malicious script content with the context of the page.

Mitigation
Update to version 60.0.

Vulnerable software versions

Mozilla Firefox: 59.0 - 59.0.2

---

External links
http://www.mozilla.org/en-US/security/advisories/mfsa2018-11/

---

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.