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CVE-2026-76252

🔶 medium
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Summary

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.13, an unauthenticated user who tricks another user into visiting a malicious web page could run unauthorized JavaScript in that user's browser. This could allow for unauthorized access to all relevant data available to that user and actions that affect system integrity. The Cross-Site Scripting (XSS) is possible because Splunk Web does not validate the origin and source of messages received by a page message handler. The vulner

Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.13, an unauthenticated user who tricks another user into visiting a malicious web page could run unauthorized JavaScript in that user's browser. This could allow for unauthorized access to all relevant data available to that user and actions that affect system integrity. The Cross-Site Scripting (XSS) is possible because Splunk Web does not validate the origin and source of messages received by a page message handler. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The unauthenticated user should not be able to exploit the vulnerability at will.

CVSS Score
6.8
Medium
EPSS Score
0.2
Exploit Probability
Published Date
2026-08-19
First Seen: 2026-08-20
📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.8% of all 349,016 vulnerabilities in our database.

#182,185
Below average severity
Severity Percentile
Last Modified 2026-08-20
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE IDs (Weakness Types)

📦 Affected Products 4

🔗 References 1

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-76251 ⚠️ high 7.1 0.2 In Splunk Enterprise versions below 10.4.2, 10.2.6, and 10.0.9, a user who does not hold the "admin" or "power" Splunk r... 2026-08-19
CVE-2026-76253 ⚠️ high 8.8 0.4 In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user that holds a role with the schedule_searc... 2026-08-19
CVE-2026-76254 ⚠️ high 7.5 0.3 In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, 9.4.14, and 9.3.14, an unauthenticated user could cause anot... 2026-08-19
CVE-2026-76255 🔶 medium 6.4 0.2 In Splunk Enterprise versions below 10.4.1, 10.2.6, 10.0.8, and 9.4.13, a user who does not hold the "admin" or "power" ... 2026-08-19
CVE-2026-76256 🔶 medium 4.3 0.2 In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9,... 2026-08-19
CVE-2026-76257 🔶 medium 6.5 0.3 In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.10... 2026-08-19
These CVEs affect the same products