Webrecorder packages are vulnerable to XSS through 404 error handling logic
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.
Patches
The vulnerability is fixed in wabac.js v2.23.11.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | replaywebpage | < 2.3.17 | 2.3.17 |
| npm package | @webrecorder/archivewebpage | < 0.15.4 | 0.15.4 |
| npm package | @webrecorder/wabac | < 2.23.11 | 2.23.11 |
References
- https://github.com/webrecorder/wabac.js/security/advisories/GHSA-w765-jm6w-4hhj
- https://nvd.nist.gov/vuln/detail/CVE-2025-58765
- https://github.com/webrecorder/archiveweb.page/pull/315
- https://github.com/webrecorder/replayweb.page/pull/448
- https://github.com/webrecorder/wabac.js/commit/25feb4a5af69a6b65694426eae67b890be438c4c
- https://github.com/webrecorder/replayweb.page/releases/tag/v2.3.17
- https://github.com/webrecorder/wabac.js
- https://github.com/webrecorder/wabac.js/releases/tag/v2.23.11
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L- Weakness (CWE)
CWE-79- Platform
- npm
- Package
replaywebpage, @webrecorder/archivewebpage, @webrecorder/wabac- Disclosed
- 10.09.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w765-jm6w-4hhj - CC BY 4.0
Vulnerability history: replaywebpage
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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