{"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": "2026-06-04T14:28:11.157Z"}, "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-43984", "lastModified": "2026-06-04T16:20:27.330", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.3, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-04T16:16:37.883", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/Tautulli/Tautulli/security/advisories/GHSA-f4j7-pjwc-4jrr"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.17.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Tautulli", "source": "cna", "vendor": "Tautulli"}, "product": "tautulli", "vendor": "tautulli"}], "created": "2026-06-04T16:30:06.054204+00:00", "updated": "2026-06-04T16:30:06.454009+00:00", "vendors": ["tautulli", "tautulli$PRODUCT$tautulli"]}