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Splunk EUVDEUVD-2025-200996

| CVE-2025-20382 LOW
URL Redirection to Untrusted Site (Open Redirect) (CWE-601)
2025-12-03 psirt@cisco.com
3.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V14 - Configuration Dependency management, component inventory
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

Phishing attacks using the trusted domain's reputation. Users may be redirected to credential-harvesting pages or malware download sites. With a CVSS score of 3.5 (LOW), this represents a low risk.

Exploit ScenarioDerived

An attacker crafts a URL with the trusted domain that redirects the victim to a phishing page designed to steal credentials.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

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.

Earlier versions of this analysis (1)
v1 Mar 15, 2026 - 16:14 CVSS 3.5

RemediationAI

Validate redirect URLs against a whitelist of allowed destinations. Use relative URLs for redirects. Warn users before redirecting to external sites.

Affected VersionsENISA

Splunk Enterprise 9.2 <9.2.10
Splunk Enterprise 10.0 <10.0.2
Splunk Cloud Platform 9.3.2411 <9.3.2411.120
Splunk Cloud Platform 10.1.2507 <10.1.2507.10
Splunk Cloud Platform 10.0.2503 <10.0.2503.8
Splunk Enterprise 9.3 <9.3.8
Splunk Enterprise 9.4 <9.4.6

Affected Packages

euvd splunk_cloud_platform fix: 9.3.2411.120, 10.0.2503.8, 10.1.2507.10
euvd splunk_enterprise fix: 9.2.10, 9.3.8, 9.4.6, 10.0.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

An open redirect vulnerability allows attackers to redirect users from a trusted domain to an arbitrary external URL through manipulation of redirect parameters. This vulnerability is classified as URL Redirection to Untrusted Site (Open Redirect) (CWE-601).

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 3.5 LOW
AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

2
Patch available
Apr 16, 2026 - 05:29 EUVD
9.2.10,10.0.2,9.3.2411.120
CVE Published
Dec 03, 2025 - 17:15 nvd
LOW 3.5

Executive ViewAI

Why It Matters

CVE-2025-20382 is a low-severity vulnerability in Splunk Enterprise (CVSS 3.5). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation. Apply vendor updates when available as part of routine maintenance.

Business Impact: Low
Compensating Controls

Apply vendor patch during routine maintenance. Standard security controls provide adequate interim protection.

Threat Intelligence Overview

EPSS Score
0.0%
Top 90% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

18
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +18
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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