CVE-2026-76318— Stored Cross-Site Scripting (XSS) through Splunk Web in Splunk Enterprise
Quick assessment
Affected
Splunk Splunk Enterprise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Splunk Enterprise 低于 10.4.2、10.2.6、10.0.9 和 9.4.14 的版本中，拥有 schedule_search 权限角色的用户可以在告警触发条件字段中存储恶意脚本。当其他用户打开包含该恶意脚本的链接时，脚本将在其浏览器中执行，并可能访问该用户有权访问的所有数据。 该漏洞的存在是因为 Splunk Web 在生成告警触发条件的标记（markup）时，未对告警阈值中的特殊字符进行转义处理。成功利用此漏洞需要另一用户打开经过构造的恶意链接。 有关更多信息，请参阅 Splunk 文
Possible ATT&CK Techniques 2 AI
T1189 · Drive-by Compromise T1059 · Command and Scripting InterpreterAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Splunk | Splunk Enterprise | 10.4< 10.4.2 |
affected |
10.2< 10.2.6 |
affected | ||
10.0< 10.0.9 |
affected | ||
9.4< 9.4.14 |
affected |
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I. Basic Information for CVE-2026-76318
Vulnerability Information
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Vulnerability Title
Stored Cross-Site Scripting (XSS) through Splunk Web in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability Description
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_search capability could store a malicious script in an alert trigger condition field. When another user opens the crafted link, the script runs in the browser of that user and could access all data available to that user. The vulnerability is possible because Splunk Web uses the alert threshold value in generated alert trigger condition markup without escaping special characters. Successful exploitation requires another user to open the crafted link. For more information see Configure alert trigger conditions (https://help.splunk.com/en/splunk-enterprise/alert-and-respond/alerting-manual/10.4/manage-alert-trigger-conditions-and-throttling/configure-alert-trigger-conditions) and Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) in the Splunk documentation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Splunk | Splunk Enterprise | 10.4 ~ 10.4.2 | - |
|
II. Public POCs for CVE-2026-76318
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Splunk · 2026-08-19 · 110 CVEs total
| CVE-2026-76311 | 9.4 CRITICAL | Improper Access Control in Embedded Report Dispatch Archives in Splunk Enterprise |
| CVE-2026-76312 | 9.4 CRITICAL | Improper Access Control through Embedded Reports in Splunk Enterprise |
| CVE-2026-76310 | 9.4 CRITICAL | Improper Access Control through Embedded Report REST API Requests in Splunk Enterprise |
| CVE-2026-76404 | 9.1 CRITICAL | Remote Code Execution (RCE) through Deserialization of Untrusted Data in Splunk MCP Server |
| CVE-2026-76335 | 8.8 HIGH | Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76351 | 8.8 HIGH | Server-Side Request Forgery (SSRF) through the Report Notification REST API in Splunk Secu |
| CVE-2026-76253 | 8.8 HIGH | Privilege Escalation through Scheduled Search Alert Action Configuration in Splunk Enterpr |
| CVE-2026-76315 | 8.8 HIGH | Code Injection through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76352 | 8.8 HIGH | Improper Authorization through the REST API in Splunk Enterprise |
| CVE-2026-76317 | 8.8 HIGH | Path Traversal through the Lookup Configuration REST API in Splunk Enterprise |
| CVE-2026-76313 | 8.8 HIGH | Remote Code Execution (RCE) through the REST API in Splunk Enterprise |
| CVE-2026-76395 | 8.8 HIGH | Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading |
| CVE-2026-76389 | 8.8 HIGH | Server-Side Request Forgery (SSRF) through the REST API in Cisco Talos Intelligence for En |
| CVE-2026-76350 | 8.8 HIGH | Improper Privilege Management through PDF Attachments for Email Alert Actions in Splunk En |
| CVE-2026-76319 | 8.8 HIGH | Remote Code Execution (RCE) through Federated Search in Splunk Enterprise |
| CVE-2026-76314 | 8.8 HIGH | Remote Code Execution (RCE) through Splunk Web Manager Configuration in Splunk Enterprise |
| CVE-2026-76259 | 8.8 HIGH | Improper Privilege Management on the Management Port in Splunk Enterprise for Windows |
| CVE-2026-76316 | 8.8 HIGH | Stored SPL Injection through Deployment Server Broker Registration in Splunk Enterprise |
| CVE-2026-76391 | 8.3 HIGH | Improper Privilege Management through Agent Run History in Splunk AI Toolkit |
| CVE-2026-76394 | 8.3 HIGH | Missing Authorization in Container and Connection Management through the REST API in Splun |
Showing top 20 of 110 CVEs. View all on vendor page → →
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