Dashboards in Splunk Enterprise versions before 9.0 and Splunk Cloud Platform versions before 8.2.2106 might let an attacker inject risky search commands into a form token when the token is used in a query in a cross-origin request. The result bypasses SPL safeguards for risky commands (i.e., Search Injection). See New capabilities can limit access to some custom and potentially risky commands for more information. The vulnerability is browser-based and is not exploitable at will. It requires the attacker to initiate a request within the victim's browser (e.g., phishing) or compromise an authorized user’s account.
The vulnerability affects instances with Splunk Web enabled. See Disable unnecessary Splunk Enterprise components and the web.conf configuration file for more information on disabling Splunk Web in forwarders.
At the time of publishing, we have no evidence of exploitation of this vulnerability by external parties.
For Splunk Enterprise, upgrade to version 9.0 or higher.
For Splunk Cloud Platform versions below 8.2.2106, Splunk is actively patching and monitoring the Splunk Cloud instances. To request an immediate upgrade, create a new support case. Check Determine which version of Splunk Enterprise you're running prior to submitting.