CVE-2025-11966

MEDIUM

Eclipse Vert.x 4.0.0-4.5.21 and 5.0.0-5.0.4 - Stored Cross-Site Scripting via Directory Listing Filename Injection

Title source: llm
STIX 2.1

Description

In Eclipse Vert.x versions [4.0.0, 4.5.21] and [5.0.0, 5.0.4], 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.

References (1)

Core 1
Core References

Scores

CVSS v3 6.4
EPSS 0.0024
EPSS Percentile 14.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-80 CWE-79
Status published
Products (2)
eclipse/vert.x 4.0.0 - 4.5.22
io.vertx/vertx-web 0 - 4.5.22Maven
Published Oct 22, 2025
Tracked Since Feb 18, 2026