Vulnerability · Published Oct 30, 2025 · Assigned by hackerone
CVE-2025-48980
Medium 6.5
In plain English
A medium-severity security flaw in Desktop Browser from Brave. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.0)6.5Medium
Exploit odds (30 days)0.3%top 73.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Brave | Desktop Browser | 1.83.10 – before 1.83.10 |
Weakness: CWE-565 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N