CVE-2023-40592Network attack vector

Arbitrary command execution via reflected XSS

Published Aug 30, 2023 · Updated Feb 28, 2025

Reflected XSS in Splunk Web in Splunk Enterprise before 8.2.12, 9.0.6, and 9.1.1 allows remote authenticated users to execute commands. A JavaScript file for /app/search/table fails to validate attacker-controlled input before inserting a payload into a function. The flaw also affects Splunk Cloud Platform 9.0.2305.100 and earlier; exploitation requires high privileges and user interaction.

CVSS severity8.4
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Splunk Web in Splunk Enterprise before 8.2.12, 9.0.6, and 9.1.1 allows remote authenticated users to execute commands. A JavaScript file for /app/search/table fails to validate attacker-controlled input before inserting a payload into a function. The flaw also affects Splunk Cloud Platform 9.0.2305.100 and earlier; exploitation requires high privileges and user interaction.

The record

CVE
CVE-2023-40592
Published
Aug 30, 2023
Updated
Feb 28, 2025
Vendor
Splunk, Inc.
Product
Splunk Enterprise
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 28, 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=8.2 <8.2.12
  2. Affected versionversion=9.0 <9.0.6
  3. Affected versionversion=9.1 <9.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Splunk, Inc. · Splunk Enterpriseversion=8.2 <8.2.12; version=9.0 <9.0.6; version=9.1 <9.1.1
Splunk, Inc. · Splunk Cloud Platformversion=- <9.0.2305.200

Published CVSS scores

8.4Splunk Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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

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Your stack

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