CVE-2016-2817 describes a Universal XSS (UXSS) vulnerability in Mozilla Firefox versions prior to 46.0. The flaw resides in the WebExtension sandbox feature, specifically in how principal inheritance is handled during chrome.tabs.create and chrome.tabs.update API calls, allowing crafted extensions to execute arbitrary script via javascript: or data: URLs. Rated with a CVSS score of 5.4 (Medium), this vulnerability requires user interaction (UI:R) and an unauthenticated attacker (PR:N) to exploit, leading to low impact on confidentiality and integrity (C:L/I:L). The attack complexity is low (AC:L), but the scope is unchanged (S:U). There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 45.0.2CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.