PT-2025-43147

CVE-2025-11966

Published

2025-10-22

Updated

2026-10-30

Description by

CVSS 3.1

6.4

Medium

MetricsAV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Eclipse Vert.x versions 4.0.0 through 4.5.21 Eclipse Vert.x versions 5.0.0 through 5.0.4

Description When directory listing is enabled, file and directory names are inserted into generated HTML without proper escaping in the href, title, and link attributes. An attacker who can create or rename files or directories within a served path can craft filenames containing malicious script or HTML content, leading to stored cross-site scripting (XSS) that executes in the context of users viewing the affected directory listing.

Recommendations Update Eclipse Vert.x to a version later than 4.5.21. Update Eclipse Vert.x to a version later than 5.0.4.

Exploitability

Exploit

Fix

Impacts

Researchers

Sho Odagiri

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')

CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)