CVE-2025-1018

MEDIUM
2025-02-04 [email protected]
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

3
Patch Released
Apr 04, 2026 - 20:30 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 18:24 vuln.today
CVE Published
Feb 04, 2025 - 14:15 nvd
MEDIUM 5.3

Tags

XSS Mozilla Firefox Thunderbird Redhat Suse

Description

The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.

Analysis

The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified under CWE-1021. The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135. Affected products include: Mozilla Firefox, Mozilla Thunderbird.

Affected Products

Mozilla Firefox, Mozilla Thunderbird.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +26
POC: 0

Vendor Status

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CVE-2025-1018 vulnerability details – vuln.today
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