Skip to content
OpenAdvisories
Medium · 5.3 Public exploit CVE-2025-20384 EUVD-2025-201004GHSA-2x78-c45h-phqx

Unauthenticated Log Injection in Splunk Enterprise

Published Dec 3, 2025 · Updated Dec 3, 2025 · Assigned by cisco

Vendor: Splunk Product: Splunk Cloud Platform Product: Splunk Enterprise

Description

In Splunk Enterprise versions below 10.0.1, 9.4.6, 9.3.8, and 9.2.10, and Splunk Cloud Platform versions below 10.1.2507.4, 10.0.2503.6, and 9.3.2411.117.125, an unauthenticated attacker can inject American National Standards Institute (ANSI) escape codes into Splunk log files due to improper validation at the /en-US/static/ web endpoint. This may allow them to poison, forge, or obfuscate sensitive log data through specially crafted HTTP requests, potentially impacting log integrity and detection capabilities.

Affected products

VendorProductAffectedFixed
Splunk Splunk Enterprise 10.0 – < 10.0.1, 9.4 – < 9.4.6, 9.3 – < 9.3.8, 9.2 – < 9.2.10 10.0.1
Splunk Splunk Cloud Platform 10.1.2507 – < 10.1.2507.4, 10.0.2503 – < 10.0.2503.6, 9.3.2411 – < 9.3.2411.117 10.1.2507.4

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 2

References