CVE-2025-48980
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-31

Last updated on: 2025-12-01

Assigner: HackerOne

Description
In Brave Browser Desktop versions prior to 1.83.10 that have the split view feature enabled, the "Open Link in Split View" context menu item did not respect the SameSite cookie attribute. Therefore SameSite=Strict cookies would be sent on a cross-site navigation using this method.
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Meta Information
Published
2025-10-31
Last Modified
2025-12-01
Generated
2026-06-16
AI Q&A
2025-10-31
EPSS Evaluated
2026-06-15
NVD
CVE-2025-48980
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
brave browser 1.83.10
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-565 The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user.
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Executive Summary

This vulnerability occurs in Brave Browser Desktop versions prior to 1.83.10 when the split view feature is enabled. The "Open Link in Split View" context menu item does not respect the SameSite cookie attribute, causing SameSite=Strict cookies to be sent during cross-site navigation using this method, which should not normally happen.

Impact Analysis

The vulnerability can lead to SameSite=Strict cookies being sent on cross-site navigations, potentially exposing sensitive cookie data to unintended sites. This can increase the risk of cross-site request forgery (CSRF) or other cross-site attacks, compromising user privacy and security.

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