webrecorder wabac.js up to 2.23.10 URL requestURL cross site scripting

Summaryinfo

A vulnerability was found in webrecorder wabac.js up to 2.23.10. It has been classified as problematic. This affects an unknown part of the component URL Handler. Performing a manipulation of the argument requestURL results in cross site scripting. This vulnerability is identified as CVE-2025-58765. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in webrecorder wabac.js up to 2.23.10. This affects an unknown code block of the component URL Handler. The manipulation of the argument requestURL with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

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 `` 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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-58765 since 09/04/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 2.23.11 eliminates this vulnerability.

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Productinfo

Type

• JavaScript Library

Vendor

• webrecorder

Name

• wabac.js

Version

• 2.23.0
• 2.23.1
• 2.23.2
• 2.23.3
• 2.23.4
• 2.23.5
• 2.23.6
• 2.23.7
• 2.23.8
• 2.23.9
• 2.23.10

Website

• Product: https://github.com/webrecorder/wabac.js/

CPE 2.3info

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CPE 2.2info

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