{"id":"CVE-2026-20258","state":"PUBLISHED","title":"Stored Cross-Site Scripting (XSS) through Classic Dashboard in Splunk Enterprise","description":"In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the \"admin\" or \"power\" Splunk roles could store a malicious script in a classic dashboard HTML panel, causing unauthorized JavaScript code to execute in the browser of another user.  \n\nThe vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The low-privileged user should not be able to exploit the vulnerability at will.","publishedAt":"2026-06-10T17:16:23.870Z","updatedAt":"2026-06-10T18:22:27.505Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","source":"cisco"},"assigner":"cisco","products":["Splunk Splunk Enterprise","Splunk Splunk Cloud Platform"],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.2","status":"affected","lessThan":"10.2.4","versionType":"custom"},{"version":"10.0","status":"affected","lessThan":"10.0.7","versionType":"custom"},{"version":"9.4","status":"affected","lessThan":"9.4.12","versionType":"custom"},{"version":"9.3","status":"affected","lessThan":"9.3.13","versionType":"custom"}]},{"vendor":"Splunk","product":"Splunk Cloud Platform","versions":[{"version":"10.3.2512","status":"affected","lessThan":"10.3.2512.11","versionType":"custom"},{"version":"10.2.2510","status":"affected","lessThan":"10.2.2510.15","versionType":"custom"},{"version":"10.1.2507","status":"affected","lessThan":"10.1.2507.23","versionType":"custom"},{"version":"9.3.2411","status":"affected","lessThan":"9.3.2411.132","versionType":"custom"}]}],"references":["https://advisory.splunk.com/advisories/SVD-2026-0608"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20258.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20258","state":"PUBLISHED","datePublished":"2026-06-10T17:16:23.870Z","dateUpdated":"2026-06-10T18:22:27.505Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2025-10-08T11:59:15.401Z"},"containers":{"cna":{"title":"Stored Cross-Site Scripting (XSS) through Classic Dashboard in Splunk Enterprise","descriptions":[{"lang":"en","value":"In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.3.2512.11, 10.2.2510.15, 10.1.2507.23, and 9.3.2411.132, a low-privileged user that does not hold the \"admin\" or \"power\" Splunk roles could store a malicious script in a classic dashboard HTML panel, causing unauthorized JavaScript code to execute in the browser of another user.  \n\nThe vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The low-privileged user should not be able to exploit the vulnerability at will."}],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.2","status":"affected","lessThan":"10.2.4","versionType":"custom"},{"version":"10.0","status":"affected","lessThan":"10.0.7","versionType":"custom"},{"version":"9.4","status":"affected","lessThan":"9.4.12","versionType":"custom"},{"version":"9.3","status":"affected","lessThan":"9.3.13","versionType":"custom"}]},{"vendor":"Splunk","product":"Splunk Cloud Platform","versions":[{"version":"10.3.2512","status":"affected","lessThan":"10.3.2512.11","versionType":"custom"},{"version":"10.2.2510","status":"affected","lessThan":"10.2.2510.15","versionType":"custom"},{"version":"10.1.2507","status":"affected","lessThan":"10.1.2507.23","versionType":"custom"},{"version":"9.3.2411","status":"affected","lessThan":"9.3.2411.132","versionType":"custom"}]}],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-0608"}],"metrics":[{"cvssV3_1":{"vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1","baseScore":7.1,"baseSeverity":"HIGH"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","type":"cwe","description":"The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users."}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2026-06-10T17:16:23.870Z"},"datePublic":"2026-06-10T00:00:00.000Z","source":{"advisory":"SVD-2026-0608"},"credits":[{"lang":"en","value":"Tony Tong"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-10T18:22:19.768336Z","id":"CVE-2026-20258","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-10T18:22:27.505Z"}}]}}}