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Description

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.

PUBLISHED Reserved 2026-02-12 | Published 2026-02-13 | Updated 2026-02-17 | Assigner GitHub_M




CRITICAL: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CWE-640: Weak Password Recovery Mechanism for Forgotten Password

Product status

< 1.6.3
affected

References

github.com/.../known/security/advisories/GHSA-78wq-6gcv-w28r

github.com/...ommit/8439a0747471559fb1ea9f074b929d390f27e66a

github.com/idno/known/releases/tag/1.6.3

cve.org (CVE-2026-26273)

nvd.nist.gov (CVE-2026-26273)

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