CVE-2023-4862Public exploitNetwork attack vector

Admin-to-super-admin script execution via unescaped theme setting

Published Oct 16, 2023 · Updated Aug 2, 2024

Stored XSS in Ninja Team File Manager Pro – Filester before 1.8.1 allows remote authenticated users to run JavaScript in an administrator's browser. The selector_themes AJAX action accepts a crafted themesValue string whose injected accesskey and onclick attributes are later rendered by File Manager. An administrator must store the setting, and a multisite super administrator must open File Manager and invoke the injected access key.

CVSS severity4.8
Medium
EPSS probability0.40%
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

Stored XSS in Ninja Team File Manager Pro – Filester before 1.8.1 allows remote authenticated users to run JavaScript in an administrator's browser. The selector_themes AJAX action accepts a crafted themesValue string whose injected accesskey and onclick attributes are later rendered by File Manager. An administrator must store the setting, and a multisite super administrator must open File Manager and invoke the injected access key.

The record

CVE
CVE-2023-4862
Published
Oct 16, 2023
Updated
Aug 2, 2024
Vendor
Ninja Team
Product
File Manager Pro – Filester
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=0 <1.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Ninja Team · File Manager Pro – Filesterversion=0 <1.8.1

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

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