Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate as low-privileged Splunk user
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DeliveryCraft saved search with malicious payload
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ExploitPayload stored in error/job-inspection details
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ExecutionVictim admin opens inspection view
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PersistJavaScript executes in victim browser
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ImpactHijack privileged session context
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires an authenticated Splunk account that does NOT hold the admin or power role (PR:L), so an attacker must already have a valid low-privileged login on the instance. The specific trigger is a malicious payload embedded in a saved search that surfaces through that search's error messages and job-inspection details. Exploitation is limited by required victim interaction (UI:R): a second user must actively view those error/job-inspection details for the stored JavaScript to execute, meaning there is no fully automated or self-propagating path. Impact is greatest when the viewing victim is a higher-privileged user such as an administrator. Instances already upgraded to Splunk Enterprise 9.4.4/9.3.6/9.2.8 or the fixed Splunk Cloud Platform builds (9.3.2411.108, 9.3.2408.118, 9.2.2406.123) are not affected. |
| Impact | This is a stored/DOM cross-site scripting flaw (CWE-79) in Splunk Enterprise and Splunk Cloud Platform. The signals are consistent and all point to a genuine-but-moderate priority rather than an emergency. The CVSS 3.1 base score of 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) reflects a network vector but with real limiting factors: the attacker must already authenticate as a low-privileged Splunk user (PR:L) and a victim must interact (UI:R) by viewing the crafted error messages or job-inspection details of a saved search. EPSS is very low at 0.03% (8th percentile), the vulnerability is NOT on the CISA KEV list, and no public exploit code is identified in the provided data - so there is no evidence of active or imminent mass exploitation. The scope-change flag (S:C) is the one element that raises impact: the injected JavaScript executes in another user's browser context, which is why confidentiality and integrity are rated Low rather than None. No signals conflict here; the low EPSS, absence of KEV, and absence of a POC all align with a vulnerability that is real and should be patched on a normal cadence, but is not a drop-everything issue. The main residual risk is privilege escalation - if the script executes in an admin's browser, session or action hijacking becomes possible. |
| Exploit ScenarioDerived | A low-privileged authenticated Splunk user who lacks the admin or power role creates a saved search containing a malicious payload that surfaces through the search's error messages or job-inspection details. When a higher-privileged user (e.g. an administrator) later views those error or inspection details, the attacker's JavaScript executes in that victim's browser session, potentially enabling session/action hijacking. No public exploit code was identified at time of analysis. |
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Alert meAnalysisAIv2 – Oct 18, 2026
Cross-site scripting in Splunk Enterprise and Splunk Cloud Platform lets a low-privileged authenticated user inject JavaScript through the error messages and job-inspection details of a saved search, which then executes in the browser of a user who views those details. Exploitation requires a valid Splunk account without admin or power roles and depends on victim interaction, with the greatest risk when an administrator views the malicious content. No public exploit was identified at time of analysis, EPSS is 0.03%, and vendor patches are available for the listed Enterprise and Cloud Platform versions.
Earlier versions of this analysis (1)
RemediationAI
Upgrade Splunk Enterprise to 9.4.4, 9.3.6, or 9.2.8 or later, and upgrade Splunk Cloud Platform to 9.3.2411.108, 9.3.2408.118, or 9.2.2406.123 or later, per the vendor advisory at https://advisory.splunk.com/advisories/SVD-2025-1003. Until upgrades are complete, restrict creation and editing of saved searches and access to job-inspection/error details to trusted users, review existing saved searches for untrusted payloads, and limit the number of users holding admin or power roles so that low-privileged content is less likely to execute in a high-privilege browser; these controls reduce functionality and administrative convenience and should be scoped to the affected deployment. Patch status is vendor-released patch: Splunk Enterprise 9.4.4, 9.3.6, and 9.2.8; Splunk Cloud Platform 9.3.2411.108, 9.3.2408.118, and 9.2.2406.123.
Affected VersionsENISA
Affected Packages
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
CWE-79 covers improper neutralization of user-controllable input before it is placed in a web page, and this issue is a stored/DOM cross-site scripting flaw in Splunk Enterprise and Splunk Cloud Platform saved-search handling. The affected surface is the saved search's error messages and job-inspection details: a low-privileged user who does not hold the admin or power role can craft a malicious payload that later reaches another user's browser when that user inspects the search's error or job details. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N confirms network reachability, low privileges, required user interaction, and a scope change, but with only low confidentiality and integrity impact. The CPE data identifies splunk:splunk enterprise edition and splunk:splunk_cloud_platform as the affected product families.
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Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Requires an authenticated low-privileged account (PR:L) and victim viewing the malicious output (UI:R); stored XSS executing in another user's browser is a scope change (S:C) with limited C/I and no availability impact.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
In Splunk Enterprise versions below 9.4.4, 9.3.6, and 9.2.8, and Splunk Cloud Platform versions below 9.3.2411.108, 9.3.2408.118 and 9.2.2406.123, a low privileged user that does not hold the admin or power Splunk roles could craft a malicious payload through the error messages and job inspection details of a saved search. This could result in execution of unauthorized JavaScript code in the browser of a user.
Executive ViewAI
Organizations using Splunk Enterprise should be aware of moderate risk from CVE-2025-20368, a cross-site scripting vulnerability rated CVSS 5.7. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packe
Unauthenticated arbitrary file write in Splunk Enterprise (below 10.2.4 and 10.0.7) and Splunk Cloud Platform (below 10.
curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when
curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple t
In Splunk Enterprise versions below 9.2.2, 9.1.5, and 9.0.10, a low-privileged user that does not hold the admin or powe
In Splunk Enterprise versions below 9.0.7 and 9.1.2, Splunk Enterprise does not safely sanitize extensible stylesheet la
In versions of Splunk Enterprise below 9.0.5, 8.2.11, and 8.1.14, and Splunk Cloud Platform below version 9.0.2303.100,
In Splunk Enterprise versions below 8.2.9, 8.1.12, and 9.0.2, an authenticated user can execute arbitrary code through t
When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the
SQLite 1.0.12 through 3.39.x before 3.39.2 sometimes allows an array-bounds overflow if billions of bytes are used in a
A vulnerability exists in curl <7.87.0 HSTS check that could be bypassed to trick it to keep using HTTP. Rated high seve
When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data t
EUVD-2025-32709
NVD
CVE.org
EPSS
GitHub PoC
Exploit-DB