CVE-2025-3035

MEDIUM

Firefox < 137.0 - Unauthorized Document Title Exposure via AI Chatbot

Title source: llm

Description

By first using the AI chatbot in one tab and later activating it in another tab, the document title of the previous tab would leak into the chat prompt. This vulnerability was fixed in Firefox 137.

References (2)

Core 2

Core References

Permissions Required

https://bugzilla.mozilla.org/show_bug.cgi?id=1952268

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-20/

Scores

CVSS v3 5.3

EPSS 0.0024

EPSS Percentile 15.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-359

Status published

Products (2)

mozilla/firefox < 137.0

Mozilla/Firefox 137

Published Apr 01, 2025

Tracked Since Feb 18, 2026