CVE-2025-8042: Vulnerability in Mozilla Firefox
Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability was fixed in Firefox 141.
AI Analysis
Technical Summary
The vulnerability CVE-2025-8042 affects Firefox for Android by allowing sandboxed iframes that lack the 'allow-downloads' attribute to start downloads, bypassing intended sandbox restrictions. This could potentially be exploited to initiate unwanted or malicious downloads without user consent. Mozilla addressed and fixed this issue in Firefox 141 as part of a security update that also included fixes for multiple other vulnerabilities.
Potential Impact
The vulnerability allows sandboxed iframes to start downloads without the required 'allow-downloads' attribute, potentially enabling unauthorized or unexpected file downloads on affected Firefox for Android versions prior to 141. The CVSS score of 9.8 reflects critical impact on confidentiality, integrity, and availability. However, no known exploits in the wild have been reported at this time.
Mitigation Recommendations
This vulnerability is fixed in Firefox 141. Users and administrators should update Firefox for Android to version 141 or later to remediate this issue. No additional mitigation steps are required once the update is applied.
CVE-2025-8042: Vulnerability in Mozilla Firefox
Description
Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability was fixed in Firefox 141.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-8042 affects Firefox for Android by allowing sandboxed iframes that lack the 'allow-downloads' attribute to start downloads, bypassing intended sandbox restrictions. This could potentially be exploited to initiate unwanted or malicious downloads without user consent. Mozilla addressed and fixed this issue in Firefox 141 as part of a security update that also included fixes for multiple other vulnerabilities.
Potential Impact
The vulnerability allows sandboxed iframes to start downloads without the required 'allow-downloads' attribute, potentially enabling unauthorized or unexpected file downloads on affected Firefox for Android versions prior to 141. The CVSS score of 9.8 reflects critical impact on confidentiality, integrity, and availability. However, no known exploits in the wild have been reported at this time.
Mitigation Recommendations
This vulnerability is fixed in Firefox 141. Users and administrators should update Firefox for Android to version 141 or later to remediate this issue. No additional mitigation steps are required once the update is applied.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- mozilla
- Date Reserved
- 2025-07-22T10:14:13.121Z
- Cvss Version
- null
- State
- PUBLISHED
Threat ID: 68a4e679ad5a09ad00fb5dae
Added to database: 8/19/2025, 9:02:49 PM
Last enriched: 4/14/2026, 11:54:43 AM
Last updated: 5/10/2026, 5:25:58 AM
Views: 478
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