CVE-2025-8039

HIGH

Firefox < 141.0 and Thunderbird < 141.0 - Exposure of Sensitive Information via URL Bar Search Term Persistence

Title source: llm
STIX 2.1

Description

In some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.

References (5)

Core 5

Scores

CVSS v3 8.1
EPSS 0.0031
EPSS Percentile 53.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-200
Status published
Products (8)
mozilla/firefox < 140.1
mozilla/firefox < 141.0
Mozilla/Firefox 140.1 - 140.*
Mozilla/Firefox 141
mozilla/thunderbird < 140.1
mozilla/thunderbird < 141.0
Mozilla/Thunderbird 140.1 - 140.*
Mozilla/Thunderbird 141
Published Jul 22, 2025
Tracked Since Feb 18, 2026