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CVE-2026-55089: CWE-863: Incorrect Authorization in ether etherpadCVE-2026-55089
0

CVE-2026-55089 is a critical authorization vulnerability in Etherpad versions from 2.1.0 up to but not including 3.1.0. It allows non-admin users with valid signed tokens to perform administrative actions due to improper authorization checks in the OAuth authorization_code path. This flaw permits unauthorized disclosure, modification, or deletion of pads across the Etherpad instance. The issue is fixed in version 3.1.0.

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CVE-2026-55085: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ether etherpadCVE-2026-55085
0

Etherpad versions prior to 3.3.1 contain a cross-site scripting (XSS) vulnerability due to improper neutralization of input in the handling of the start attribute of numbered lists. This allows users with write access to a pad to inject malicious markup that executes when other users, including administrators, view the pad or its timeslider. The vulnerability is fixed in version 3.3.1.

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