6.5

CVE-2023-3482: mozilla firefox Missing Authorization

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-3482
Published 05-07-2023Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2023-3482 is a medium (CVSS 6.5) Missing Authorization vulnerability in mozilla firefox. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 46.4% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.57%
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 6 · Related 6
OPENSUSE-SU-2024:13037-1OPENSUSE-SU-2024:14572-1SUSE-SU-2023:2849-1SUSE-SU-2023:2850-1SUSE-SU-2023:2886-1USN-6201-1

Timeline

  1. 05-07-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

0.00 pp

From 0.57% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.57%

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

Mozilla1 product
  • firefox≥ unspecified, < 115 | < 115.0
Ubuntu1 product
  • firefox< 115.0+build2-0ubuntu0.20.04.3

2 vendors · 2 products

References

7 links