CVE-2026-20258

high Splunk
CVSS v3 Base Score
7.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.2%
Exploitation probability in 30 days
Top 89% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Published: June 10, 2026 (29 days ago)
Last Modified: June 15, 2026
Vendor: Splunk
Source: NVD

Description

In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 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 store a malicious script in a classic dashboard HTML panel, causing unauthorized JavaScript code to execute in the browser of another user. The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The low-privileged user should not be able to exploit the vulnerability at will.

CWE

CWE-79

Affected Products

splunk splunksplunk splunk cloud platform

References

🔗 advisory.splunk.com