CVE-2011-2993 describes a critical vulnerability in Mozilla Firefox 4.x through 5 and SeaMonkey 2.x before 2.3, where the digital signature implementation for JAR files failed to prevent unsigned JavaScript from calling signed code. This flaw allows remote attackers to bypass the Same Origin Policy and gain elevated privileges through a specially crafted website. With a CVSS score of 9.3, this vulnerability is highly severe, indicating a network-based attack with medium complexity that could lead to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:4.0:*:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:4.0:beta10:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:4.0:beta11:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:4.0:beta12:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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.