CVE-2025-62369Network attack vector

Authenticated code execution via unsandboxed Twig rendering

Published Nov 4, 2025 · Updated Nov 4, 2025

Code injection in Xibo CMS before 4.3.1 allows remote authenticated users to execute server-side functions through module templates. WidgetHtmlRenderer passes attacker-controlled Twig stencil and style strings to fetchFromString without sandboxing or a restrictive security policy. Exploitation requires the Add/Edit custom modules and templates permission, enabled only for super administrators by default; code runs as the web server user and remains inside the container in the recommended deployment.

CVSS severity7.2
High
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in Xibo CMS before 4.3.1 allows remote authenticated users to execute server-side functions through module templates. WidgetHtmlRenderer passes attacker-controlled Twig stencil and style strings to fetchFromString without sandboxing or a restrictive security policy. Exploitation requires the Add/Edit custom modules and templates permission, enabled only for super administrators by default; code runs as the web server user and remains inside the container in the recommended deployment.

The record

CVE
CVE-2025-62369
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
Xibo Signage
Product
Xibo CMS
Classifications
CWE-1336, CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Xibo Signage · Xibo CMSversion=< 4.3.1

Published CVSS scores

7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo