CVE-2025-3035

Tab title disclosure across pages when using AI chatbot

MEDIUM
5.3
CVSS Score
Published: April 1, 2025 at 12:29 PM UTC
Updated: September 30, 2026 at 07:10 PM UTC
1 product affected across 1 vendorFirefox

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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 affects Firefox < 137.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 137.0
Vendor states this is fixed in 137 (unaffected)
Affected range stops below 137.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-359

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