Improper Input Validation through Classic Dashboards in Splunk Enterprise

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-20255
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-10 18:16:41 UTC
Updated2026-06-10 18:16:41 UTC
DescriptionIn Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.13, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious classic dashboard that exfiltrates sensitive data to an external server. The vulnerability exists because URL validation on the external content dialog is incomplete, which can allow for requests to untrusted domains when a user interacts with a crafted dashboard.

Risk And Classification

Primary CVSS: v3.1 5.7 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

EPSS: 0.000450000 probability, percentile 0.144440000 (date 2026-06-14)

Problem Types: CWE-20 | CWE-20 The product does not validate or incorrectly validates input that can affect the control flow or data flow of a program.

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
3.1CNACVSS5.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Splunk Splunk Enterprise affected 10.2 10.2.4 custom Not specified
CNA Splunk Splunk Enterprise affected 10.0 10.0.7 custom Not specified
CNA Splunk Splunk Enterprise affected 9.4 9.4.12 custom Not specified
CNA Splunk Splunk Enterprise affected 9.3 9.3.13 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.3.2512 10.3.2512.13 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.2.2510 10.2.2510.15 custom Not specified
CNA Splunk Splunk Cloud Platform affected 10.1.2507 10.1.2507.23 custom Not specified
CNA Splunk Splunk Cloud Platform affected 9.3.2411 9.3.2411.132 custom Not specified

References

ReferenceSourceLinkTags
advisory.splunk.com/advisories/SVD-2026-0605 [email protected] advisory.splunk.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Tony Tong (tongster) (en)

© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report