5.7
/ 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
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 10.3.2512.13, 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 classic dashboard that exfiltrates sensitive data from the browser of a higher-privileged user who views it.
The exfiltration is possible because classic dashboard panels do not fully validate style attribute values, which can allow for requests to reach external domains outside the configured Trusted Domains List.
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.
The exfiltration is possible because classic dashboard panels do not fully validate style attribute values, which can allow for requests to reach external domains outside the configured Trusted Domains List.
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.
Basic Information
ID
CVE-2026-20257
Source
cisco
Published
Jun 10, 2026 at 17:16
Modified
Jun 10, 2026 at 18:24
Affected Product
Vendor
Splunk
Product
Splunk Enterprise
Version
10.2
Affected Versions
Splunk Splunk Enterprise 10.2
Splunk Splunk Enterprise 10.0
Splunk Splunk Enterprise 9.4
Splunk Splunk Enterprise 9.3
Splunk Splunk Cloud Platform 10.3.2512
Splunk Splunk Cloud Platform 10.2.2510
Splunk Splunk Cloud Platform 10.1.2507
Splunk Splunk Cloud Platform 9.3.2411
Splunk Splunk Enterprise 10.0
Splunk Splunk Enterprise 9.4
Splunk Splunk Enterprise 9.3
Splunk Splunk Cloud Platform 10.3.2512
Splunk Splunk Cloud Platform 10.2.2510
Splunk Splunk Cloud Platform 10.1.2507
Splunk Splunk Cloud Platform 9.3.2411