Advisory Details

March 23rd, 2026

(Pwn2Own) Samsung Galaxy S25 Samsung Account Cross-Site Scripting Remote Code Execution Vulnerability

CVE ID	CVE-2025-58486
CVSS SCORE	6.3, AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
AFFECTED VENDORS	Samsung
AFFECTED PRODUCTS	Galaxy S25
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary script on affected installations of Samsung Galaxy S25. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Samsung Account application. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to execute script in the context of the current WebView.
ADDITIONAL DETAILS	Samsung has issued an update to correct this vulnerability. More details can be found at: https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=12
DISCLOSURE TIMELINE	2025-11-20 - Vulnerability reported to vendor 2026-03-23 - Coordinated public release of advisory 2026-03-23 - Advisory Updated
CREDIT	Ken Gannon / 伊藤剣 (@yogehi) of Mobile Hacking Lab, and Dimitrios Valsamaras (@Ch0pin)

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