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Active filters (1):Package: pkg:github/collaboraonline/online

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CVE-2026-23623 is a medium severity vulnerability in Collabora Online that allows users with view-only permissions and no download rights to bypass access controls and download shared files by pressing Ctrl+Shift+S, despite the interface lacking download buttons. This improper authorization issue affects multiple versions prior to patched releases in 2026. The vulnerability impacts confidentiality by enabling unauthorized data retrieval without requiring authentication or user interaction beyond the keypress. It has a CVSS score of 5.3 and has not been observed exploited in the wild. European organizations using vulnerable versions of Collabora Online for document collaboration risk unauthorized data exposure. Mitigation requires updating to fixed versions 23.05.20.1, 24.

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CVE-2025-66208 is a high-severity OS command injection vulnerability affecting Collabora Online's built-in CODE Server (richdocumentscode proxy) in versions prior to 25.04.702. This flaw allows unauthenticated remote attackers to execute arbitrary OS commands via the proxy.php interface, particularly when used with Nextcloud and an intermediate reverse proxy. The vulnerability arises from improper neutralization of special elements in OS commands (CWE-78). No user interaction or privileges are required, and the vulnerability has not yet been observed exploited in the wild. The issue is fixed in version 25.04.702.

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