CVE-2026-26273
CRITICAL
GHSA-78wq-6gcv-w28r
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4Description
Known is a social publishing platform. Prior to 1.6.3, a Critical Broken Authentication vulnerability exists in Known 1.6.2 and earlier. The application leaks the password reset token within a hidden HTML input field on the password reset page. This allows any unauthenticated attacker to retrieve the reset token for any user by simply querying the user's email, leading to full Account Takeover (ATO) without requiring access to the victim's email inbox. This vulnerability is fixed in 1.6.3.
Analysis
Critical authentication bypass in Known social publishing platform 1.6.2 and earlier. Broken authentication allows unauthorized access. …
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Remediation
Within 24 hours: Identify all instances of Known in use and document current versions; assess whether public-facing instances exist and prioritize those for immediate remediation. Within 7 days: Deploy patch to version 1.6.3 or later on all Known installations; verify patches are applied and systems are restarted. …
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External POC / Exploit Code
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