CVE-2025-11966

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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/303	Issue Tracking Vendor Advisory Exploit

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:eclipse:vert.x::::::::
	cpe:2.3:a:eclipse:vert.x::::::::

History

20 Jan 2026, 19:31

Type	Values Removed	Values Added
CPE		cpe:2.3:a:eclipse:vert.x::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.4
First Time		Eclipse vert.x Eclipse
References	~~() https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/303 -~~	() https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/303 - Issue Tracking, Vendor Advisory, Exploit

22 Oct 2025, 15:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-22 15:15

Updated : 2026-01-20 19:31

NVD link : CVE-2025-11966

Mitre link : CVE-2025-11966

CVE.ORG link : CVE-2025-11966

JSON object : View

Products Affected

eclipse

vert.x

CWE

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)

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