{"id":86572,"date":"2026-02-28T09:26:27","date_gmt":"2026-02-28T09:26:27","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-53600-same-origin-policy-bypass-vulnerability-in-whale-browser","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53600-same-origin-policy-bypass-vulnerability-in-whale-browser\/","title":{"rendered":"CVE-2025-53600: Same-Origin Policy Bypass Vulnerability in Whale Browser<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

Whale browser, prior to version 4.32.315.22, has been identified as having a vulnerability that allows attackers to bypass the Same-Origin Policy in a dual-tab environment. This vulnerability, known as CVE-2025-53600, poses a significant risk to users, potentially compromising systems or leading to data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-53600
\nSeverity: High (7.5\/10 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: System Compromise or Data Leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Whale Browser | Versions before 4.32.315.22<\/p>\n

How the Exploit Works<\/strong><\/p>\n

An attacker can exploit CVE-2025-53600 by manipulating the Same-Origin Policy in a dual-tab environment within the Whale browser. This allows the attacker to access sensitive data, execute scripts or perform actions that would normally be restricted by the browser’s security measures.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Below is a conceptual example of how the vulnerability might be exploited with a JavaScript injection:<\/p>\n

<script>\n\/\/ Open new tab with target website\nvar target = window.open('http:\/\/target.example.com', '_blank');\n\/\/ Wait for the target page to fully load\nsetTimeout(function() {\n\/\/ Execute malicious actions in the context of the target page\ntarget.document.cookie = \"session=malicious_value\";\n}, 5000);\n<\/script><\/code><\/pre>\n
This code, when run in the context of an attacker’s webpage, would open a new tab to the target site and, after waiting for the page to load, inject a malicious session cookie.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate this threat, users should apply the vendor-provided patch as soon as possible. If the patch cannot be applied immediately, temporary mitigation can be achieved through the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS).<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview Whale browser, prior to version 4.32.315.22, has been identified as having a vulnerability that allows attackers to bypass the Same-Origin Policy in a dual-tab environment. This vulnerability, known as CVE-2025-53600, poses a significant risk to users, potentially compromising systems or leading to data leakage. Vulnerability Summary CVE ID: CVE-2025-53600 Severity: High (7.5\/10 CVSS Score) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86572","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t