CVE-2026-76367 json
Stored Cross-Site Scripting (XSS) through Notes in Splunk SOAR
published 2026-08-19 2 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-62932
- cvss
- 4.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
In Splunk SOAR versions below 8.6.0, a user who holds the "Incident Commander" Splunk SOAR role could store JavaScript in a note and run it in the browser of another user when that user opens the note. The stored Cross-Site Scripting (XSS) vulnerability is possible because Splunk SOAR can treat existing note content as Hypertext Markup Language (HTML) without sanitizing that content when the note format changes. The vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The user who holds the "Incident Commander" Splunk SOAR role should not be able to exploit the vulnerability at will. For more information see Manage roles and permissions in Splunk SOAR (Cloud) (https://help.splunk.com/en/splunk-soar/soar-cloud/administer-soar-cloud/manage-your-splunk-soar-cloud-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-cloud) in the Splunk documentation.
Patch / fix
- Splunk Splunk SOAR 8.6.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Splunk Splunk SOAR
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
advisory.splunk.com
/advisories/SVD-2026-0804
vendor-advisory
Sources
- CVE List CVE-2026-76367
- NVD CVE-2026-76367
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