CVE-2025-11966

io.vertx/vertx-web: Eclipse Vert.x cross site scripting

Published Oct 22, 2025 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-45p5-v273-3qqr Vert.x-Web vulnerable to Stored Cross-site Scripting in directory listings via file names
History
Type Values Removed Values Added
CPEs cpe:2.3:a:eclipse:vert.x:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
First Time appeared Eclipse
Eclipse vert.x
Vendors & Products Eclipse
Eclipse vert.x
Type Values Removed Values Added
Title io.vertx/vertx-web: Eclipse Vert.x cross site scripting
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'}

threat_severity

Moderate

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Weaknesses CWE-79
CWE-80
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
eclipse
Published
Updated
Oct 22, 2025, 3:26 PM
Reserved
Oct 20, 2025, 2:50 PM
Status
Analyzed
Published
Oct 22, 2025, 3:15 PM
Modified
Oct 8, 2026, 11:10 AM
Severity
Moderate
Public date
Oct 22, 2025, 2:44 PM