CVE-2023-3482

MEDIUM

Firefox < 115.0 - Unauthenticated LocalStorage Data Storage via about:blank Iframe

Title source: llm

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.

References (3)

Core 3

Core References

Issue Tracking, Permissions Required

https://bugzilla.mozilla.org/show_bug.cgi?id=1839464

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2023-22/

Third Party Advisory

https://security.gentoo.org/glsa/202401-10

Scores

CVSS v3 6.5

EPSS 0.0020

EPSS Percentile 42.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (1)

mozilla/firefox < 115.0

Published Jul 05, 2023

Tracked Since Feb 18, 2026