CVE-2023-22939Network attack vector

Risky-command safeguard bypass via nested map search

Published Feb 14, 2023 · Updated Feb 28, 2025

Improper input validation in Splunk Web allows remote attackers to bypass risky-command safeguards through the map SPL command. The command executes a nested search containing risky commands without applying the safeguards that normally govern those commands. Exploitation requires Splunk Web and a higher-privileged user to initiate a browser request, and it can expose or modify indexed data.

CVSS severity8.1
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Splunk Web allows remote attackers to bypass risky-command safeguards through the map SPL command. The command executes a nested search containing risky commands without applying the safeguards that normally govern those commands. Exploitation requires Splunk Web and a higher-privileged user to initiate a browser request, and it can expose or modify indexed data.

The record

CVE
CVE-2023-22939
Published
Feb 14, 2023
Updated
Feb 28, 2025
Vendor
Splunk, Inc.
Product
Splunk Enterprise
Classifications
CWE-20, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=8.1 <8.1.13
  2. Affected versionversion=8.2 <8.2.10
  3. Affected versionversion=9.0 <9.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Splunk, Inc. · Splunk Enterpriseversion=8.1 <8.1.13; version=8.2 <8.2.10; version=9.0 <9.0.4
Splunk, Inc. · Splunk Cloud Platformversion=- <9.0.2209.3

Published CVSS scores

8.1SplunkCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1204.001Malicious Link

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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