PT-2025-36954 · Wabac.Js · Wabac.Js

Dedal0 · Published 2025-09-09 · Updated 2025-09-10 · CVE-2025-58765

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions: wabac.js versions 2.23.10 and below

Description: wabac.js provides a full web archive replay system using Service Workers. A Reflected Cross-Site Scripting (XSS) vulnerability exists in the 404 error handling logic. The requestURL parameter, derived from the original request target, is directly embedded into an inline <script> block without sanitization or escaping, allowing an attacker to execute arbitrary JavaScript in the victim’s browser. The scope may be limited by CORS policies.

Recommendations: Update wabac.js to version 2.23.11 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-58765

GHSA-W765-JM6W-4HHJ

Affected Products

Wabac.Js

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58765.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-58765 · Security Note
• https://osv.dev/vulnerability/GHSA-w765-jm6w-4hhj · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-58765 · Vendor Advisory
• https://github.com/webrecorder/archiveweb.page/pull/315 · Note
• https://github.com/webrecorder/replayweb.page/pull/448 · Note
• https://github.com/webrecorder/replayweb.page/releases/tag/v2.3.17 · Note
• https://github.com/webrecorder/wabac.js · Note
• https://github.com/webrecorder/wabac.js/security/advisories/GHSA-w765-jm6w-4hhj · Note
• https://github.com/webrecorder/wabac.js/releases/tag/v2.23.11 · Note
• https://github.com/webrecorder/wabac.js/commit/25feb4a5af69a6b65694426eae67b890be438c4c · Note
• https://twitter.com/VulmonFeeds/status/1965656011756204505 · Twitter Post
• https://twitter.com/CVEnew/status/1965557716480385076 · Twitter Post