4.3

CVE-2012-3994: canonical ubuntu_linux Cross-site Scripting

CVSS: 4.3v2.0MediumModified
Published 10-10-2012Last modified 06-08-2024

Vulnerability summary

CVE-2012-3994 is a medium (CVSS 4.3) Cross-site Scripting vulnerability in canonical ubuntu_linux. EPSS estimates a 2.39% chance of exploitation in the next 30 days, higher than 83.6% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
2.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3

Timeline

  1. 10-10-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allow remote attackers to conduct cross-site scripting (XSS) attacks via a binary plugin that uses Object.defineProperty to shadow the top object, and leverages the relationship between top.location and the location property.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.39%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.39% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mozilla4 products
Redhat4 products
Suse3 products
Canonical1 product

4 vendors · 12 products

References

16 links
Show all 16 references