CVE-2025-20385Network attack vector

Stored XSS via unneutralized navigation anchor href

Published Dec 3, 2025 · Updated Dec 3, 2025

Stored XSS in Splunk Web in Splunk Enterprise and Splunk Cloud Platform allows remote authenticated users to run JavaScript in a victim's browser. The navigation collection renderer accepts a crafted anchor href and later presents it to another user without neutralizing executable content. Exploitation requires admin_all_objects and victim interaction; the published impact is limited to unauthorized browser-side code and low confidentiality loss.

CVSS severity2.4
Low
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored XSS in Splunk Web in Splunk Enterprise and Splunk Cloud Platform allows remote authenticated users to run JavaScript in a victim's browser. The navigation collection renderer accepts a crafted anchor href and later presents it to another user without neutralizing executable content. Exploitation requires admin_all_objects and victim interaction; the published impact is limited to unauthorized browser-side code and low confidentiality loss.

The record

CVE
CVE-2025-20385
Published
Dec 3, 2025
Updated
Dec 3, 2025
Vendor
Splunk, Inc.
Product
Splunk Enterprise
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0 <10.0.2
  2. Affected versionversion=9.2 <9.2.10
  3. Affected versionversion=9.3 <9.3.8
  4. Affected versionversion=9.4 <9.4.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Splunk, Inc. · Splunk Enterpriseversion=10.0 <10.0.2; version=9.2 <9.2.10; version=9.3 <9.3.8; version=9.4 <9.4.6
Zoom Video Communications, Inc. · Splunk Cloud Platformversion=10.0.2503 <10.0.2503.7; version=10.1.2507 <10.1.2507.6; version=9.3.2411 <9.3.2411.117

Published CVSS scores

2.4SplunkCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo