wabac.js provides a full web archive replay system, or 'wayback machine', using Service Workers. A Reflected Cross-Site Scripting (XSS) vulnerability exists in the 404 error handling logic of wabac.js v2.23.10 and below. The parameter `requestURL` (derived from the original request target) is directly embedded into an inline `<script>` block without sanitization or escaping. This allows an attacker to craft a malicious URL that executes arbitrary JavaScript in the victim’s browser. The scope may be limited by CORS policies, depending on the situation in which wabac.js is used. The vulnerability is fixed in wabac.js v2.23.11.
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Wed, 10 Sep 2025 14:15:00 +0000
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Tue, 09 Sep 2025 20:30:00 +0000
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Description | wabac.js provides a full web archive replay system, or 'wayback machine', using Service Workers. A Reflected Cross-Site Scripting (XSS) vulnerability exists in the 404 error handling logic of wabac.js v2.23.10 and below. The parameter `requestURL` (derived from the original request target) is directly embedded into an inline `<script>` block without sanitization or escaping. This allows an attacker to craft a malicious URL that executes arbitrary JavaScript in the victim’s browser. The scope may be limited by CORS policies, depending on the situation in which wabac.js is used. The vulnerability is fixed in wabac.js v2.23.11. | |
Title | wabac.js has XSS vulnerability in 404 error handling logic | |
Weaknesses | CWE-79 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-09-10T13:22:05.307Z
Reserved: 2025-09-04T19:18:09.500Z
Link: CVE-2025-58765

Updated: 2025-09-10T13:21:57.169Z

Status : Awaiting Analysis
Published: 2025-09-09T21:15:38.763
Modified: 2025-09-11T17:14:25.240
Link: CVE-2025-58765

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