CVE-2026-52873
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
Vulnerability in Streambert (from 2.5.0 to 2.6.0) allows script injection in the Wyzie key redemption window, which removes the CSP header and lacks window open restrictions, enabling malicious script execution in the application context.
Risk Assessment
Risk of malicious code execution in the application, potentially leading to access to internal services or sensitive data.
Recommendation
Update Streambert to version 2.6.0 or later, which includes the fix.
Other vulnerabilities in Streambert
See all- CVE-2026-48056Critical
Streambert before 2.5.0 improperly validates executable paths supplied to the run-download IPC handler, allowing a compromised renderer to execute arbitrary local binaries with the app's privileges.
- CVE-2026-48046Critical
Streambert before 2.5.0 has an unvalidated auto-updater URL vulnerability that allows a compromised renderer to make the main process download and execute an arbitrary binary, resulting in remote code execution.
- CVE-2026-48055Critical
In Streambert versions 2.4.0 and prior, a Zip Slip vulnerability was identified in the subtitle extraction logic. The application does not sanitize archive entry filenames during extraction, allowing for path traversal attacks and writing arbitrary files to the host filesystem.
- CVE-2026-52877High
Vulnerability in Streambert (before 2.6.0) in the open-external IPC handler, which passes a renderer-supplied URL to shell.openExternal without protocol validation. A compromised renderer can open local files or launch applications.
- CVE-2026-52876High
Vulnerability in Streambert (before 2.6.0) in the open-path-at-time IPC handler, which passes a renderer-controlled file path to shell.openPath without validation. A compromised renderer can launch a local executable or script.
- CVE-2026-52875High
Vulnerability in Streambert (before 2.6.0) in the perform-scheduled-backup IPC handler, which uses a renderer-supplied path for file operations without checking if it is in an authorized location. A compromised renderer can create directories, write files, and delete files anywhere.
- CVE-2026-52872High
Vulnerability in Streambert (before 2.5.0) in the downloadSubtitleFile function, which accepts a renderer-supplied URL with file: scheme and copies the file to a chosen location. A compromised renderer can copy any file readable by the StreamBERT process.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS