CVE-2017-20219

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.8.0.0 PRO"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.7.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.7.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.6.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Serviio PRO", "source": "cna", "vendor": "Serviio"}, "product": "serviio_pro", "vendor": "serviio"}], "analysis": {"en": {"generated_at": "2026-03-21T15:35:52.985725+00:00", "value": {"mitigation_remediation": ["Upgrade Serviio PRO to a version that fixes the DOM\u2011based XSS flaw.", "If an upgrade is not immediately feasible, block or sanitize URLs that target the mediabrowser component to prevent injection of malicious input.", "Restrict access to the media server to trusted networks or authenticated users to limit exposure.", "Monitor server logs for suspicious URL patterns and investigate anomalous requests.", "Ensure client browsers are up\u2011to\u2011date and have XSS protection enabled."], "summary": {"action": "Patch", "impact": "Client\u2011side arbitrary code execution via XSS"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Serviio PRO 1.8 DLNA Media Streaming Server. Any instance running that exact version is vulnerable.", "description_and_impact": "Serviio PRO 1.8 contains a DOM\u2011based cross\u2011site scripting flaw in its mediabrowser component. Attackers can craft URLs that inject malicious payloads, which are read from document.location and subsequently rendered by document.write, allowing arbitrary HTML and JavaScript to execute in the victim\u2019s browser. This client\u2011side code execution could be used for malicious browser actions such as defacing a page or hijacking a session, though the description does not detail specific downstream effects.", "risk_and_exploitability": "The CVSS score of 5.1 places the flaw in the medium severity range, and an EPSS score of less than 1% indicates a low probability of exploitation in the real world. The vulnerability is not listed in the CISA KEV catalog. Attackers must lure a user to a specially crafted URL that the mediabrowser component processes; when the URL is read into document.location and passed to document.write, the injected code executes in the victim\u2019s browser context. This requires user interaction and does not compromise the server, but it grants the attacker full client\u2011side control."}}}}, "created": "2026-03-16T09:21:02.002035+00:00", "updated": "2026-03-23T14:01:20.058903+00:00", "vendors": ["serviio", "serviio$PRODUCT$serviio_pro"]}