CVE-2025-20382 (GCVE-0-2025-20382)
Vulnerability from cvelistv5
Published
2025-12-03 17:00
Modified
2025-12-03 21:28
Severity ?
3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
CWE
  • CWE-601 - A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.
Summary
In Splunk Enterprise versions below 10.0.2, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.10, 10.0.2503.8, and 9.3.2411.120, a low-privileged user that does not hold the "admin" or "power" Splunk roles could create a views dashboard with a custom background using the `data:image/png;base64` protocol that could potentially lead to an unvalidated redirect. This behavior circumvents the Splunk external URL warning mechanism by using a specially crafted URL, allowing for a redirection to an external malicious site. The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The authenticated user should not be able to exploit the vulnerability at will.
References
Impacted products
Vendor Product Version
Splunk Splunk Enterprise Version: 10.0   < 10.0.2
Version: 9.4   < 9.4.6
Version: 9.3   < 9.3.8
Version: 9.2   < 9.2.10
 Create a notification for this product.
   Splunk Splunk Cloud Platform Version: 10.1.2507   < 10.1.2507.10
Version: 10.0.2503   < 10.0.2503.8
Version: 9.3.2411   < 9.3.2411.120
 Create a notification for this product.
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