CVE-2021-32744: fallo crítico en CollaboraOnline online
Unauthenticated attacker could gain access to currently open files
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.8epss 1.1%
Collabora Online is a collaborative online office suite. In versions prior to 4.2.17-1 and version 6.4.9-5, unauthenticated attackers are able to gain access to files which are currently opened by other users in the Collabora Online editor. For successful exploitation the attacker is required to guess the file identifier - the predictability of this file identifier is dependent on external file-storage implementations (this is a potential "IDOR" - Insecure Direct Object Reference - vulnerability). Versions 4.2.17-1 and 6.4.9-5 contain patches for this issue. There is no known workaround except updating the Collabora Online application to one of the patched releases.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
CollaboraOnline · onlineCVEs relacionadas — CollaboraOnline online
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CVE-2025-66208HIGHConfiguration-Dependent RCE (OS Command Injection) in richdocumentscode proxyEPSS 1.8%CVE-2021-43817HIGHReflected Cross-Site-Scripting vulnerability in Collabora OnlineEPSS 0.7%CVE-2021-32745HIGHReflected Cross-Site-Scripting vulnerabilityEPSS 0.6%CVE-2025-24796MEDIUMRemote Code Execution within Collabora Online jail with Macros EnabledEPSS 0.5%CVE-2023-49788HIGHImproper handling of browser-side provided input in richdocuments path handlingEPSS 0.5%CVE-2025-27791HIGHCollabora Online Vulnerable to Arbitrary File WriteEPSS 0.5%