CVE-2026-76333Disclosure(splunk / splunk)

LOWCVSS 7.1 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch splunk splunk systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who holds the "power" Splunk role could store a Dashboard Studio workflow action with a crafted Uniform Resource Locator (URL). When another authenticated user selects the stored action from Event Actions and selects Continue, attacker-controlled JavaScript runs in the browser of that user. This could expose data or actions available through Splunk Web to that user. The vulnerability is possible because Dashboard Studio does not sufficiently validate workflow-action URLs before processing them. 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 "power" Splunk role should not be able to exploit the vulnerability at will. For more information see 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.

2.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • splunk

Threat summary

  • Public PoC is present in monitored signal
  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
splunk

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-20: 1PoC Mentioned / Linked · 2026-08-20: 1Patch / Workaround · 2026-08-20: 1Technical Details · 2026-08-20: 108-20
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Disclosure

    CVE-2026-76333 - Stored XSS in Splunk Enterprise Dashboard Studio. Crafted URL triggers attacker JS in user's browser, exposing data. CVSS 7.1. No official patch - mitigate now. #CVE #Splunk #infosec https://www.valtersit.com/cve/CVE-2026-76333/ #CVE #infosec #SysAdmin #cybersecurity #Linux #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #ethicalhacking #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu #debian #ukraine #spain #ireland #unitedkingdom #canada #finland #estonia #lithuania #ireland #hungary #denmark #norway #malta #mexico #switczerland #iceland #israel

    Post summary

    The tweet announces CVE‑2026‑76333, a stored XSS in Splunk Enterprise Dashboard Studio, describes how the exploit works, warns of lack of official patch and suggests mitigation, and links to a source likely containing PoC details.

    0000047
    1.0K followersView on X
CPE platform detail1 entries

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PartVendorProductVersionTarget SWTarget HW
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