{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43984","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-04T20:24:31.916Z","datePublished":"2026-06-04T14:28:11.157Z","dateUpdated":"2026-06-04T17:04:41.170Z"},"containers":{"cna":{"title":"Tautulli has stored XSS in logFile via guest-controlled log_js_errors input","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.9,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/Tautulli/Tautulli/security/advisories/GHSA-f4j7-pjwc-4jrr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Tautulli/Tautulli/security/advisories/GHSA-f4j7-pjwc-4jrr"},{"name":"https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1","tags":["x_refsource_MISC"],"url":"https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1"}],"affected":[{"vendor":"Tautulli","product":"Tautulli","versions":[{"version":"< 2.17.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-04T14:28:11.157Z"},"descriptions":[{"lang":"en","value":"Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 expose `log_js_errors` to any authenticated user, including guest users when guest access is enabled. The endpoint writes attacker-controlled strings directly into the main application log. The administrator-only `logFile` view then reads that log file and embeds it into an HTML response without escaping. This creates a stored cross-site scripting condition where a low-privilege guest can inject HTML or JavaScript into the log file and have it execute in an administrator's browser when the log viewer is opened. Version 2.17.1 patches the issue."}],"source":{"advisory":"GHSA-f4j7-pjwc-4jrr","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/Tautulli/Tautulli/security/advisories/GHSA-f4j7-pjwc-4jrr","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-04T17:04:03.343436Z","id":"CVE-2026-43984","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-04T17:04:41.170Z"}}]}}