{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52873","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-08T21:44:27.364Z","datePublished":"2026-08-18T21:28:18.806Z","dateUpdated":"2026-08-21T19:18:23.077Z"},"containers":{"cna":{"title":"Streambert: Global CSP Removal in Wyzie Redeem Window Enables Unconstrained XSS in Electron Renderer","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-693","lang":"en","description":"CWE-693: Protection Mechanism Failure","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/truelockmc/streambert/security/advisories/GHSA-2j2q-qvpf-wh43","tags":["x_refsource_CONFIRM"],"url":"https://github.com/truelockmc/streambert/security/advisories/GHSA-2j2q-qvpf-wh43"},{"name":"https://github.com/truelockmc/streambert/pull/126","tags":["x_refsource_MISC"],"url":"https://github.com/truelockmc/streambert/pull/126"},{"name":"https://github.com/truelockmc/streambert/commit/0bd6b6ca8c830f22f75de1aa2e0d8b9bdf6d34c7","tags":["x_refsource_MISC"],"url":"https://github.com/truelockmc/streambert/commit/0bd6b6ca8c830f22f75de1aa2e0d8b9bdf6d34c7"},{"name":"https://github.com/truelockmc/streambert/releases/tag/2.6.0","tags":["x_refsource_MISC"],"url":"https://github.com/truelockmc/streambert/releases/tag/2.6.0"}],"affected":[{"vendor":"truelockmc","product":"streambert","versions":[{"version":"< 2.6.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-18T21:28:18.806Z"},"descriptions":[{"lang":"en","value":"Streambert is a cross-platform Electron Desktop App to stream and download video content. From version 2.5.0 until version 2.6.0, the wyzie-open-redeem IPC handler in index.js creates the partition:wyzie-redeem Electron session and registers an onHeadersReceived hook that removes the Content-Security-Policy header from every response in that session. The redeem window also lacks a setWindowOpenHandler restriction, so script injection in sub.wyzie.io, a loaded third-party resource, or a site reached through navigation executes without CSP constraints and can affect additional windows and persistent session storage. A user must open the Wyzie API key redemption window, and exploitation requires attacker-controlled script content in a loaded page. The resulting renderer script can invoke renderer-exposed application functionality and can be chained with other vulnerabilities to access internal services or sensitive data. This issue is fixed in version 2.6.0."}],"source":{"advisory":"GHSA-2j2q-qvpf-wh43","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/truelockmc/streambert/security/advisories/GHSA-2j2q-qvpf-wh43","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T19:17:53.917334Z","id":"CVE-2026-52873","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-21T19:18:23.077Z"}}]}}