CVE-2026-26273

Known affected by Account Takeover via Password Reset Token Leakage

State: Published
Severity: 9.8 Critical
Published: Feb 13, 2026
Updated: Feb 17, 2026
Reserved: Feb 12, 2026

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.

Scores

CVSS	Score	Vector	Source
3.0	9.8 Critical	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-640 Weak Password Recovery Mechanism for Forgotten Password

Affected Products

Product	Versions
knownidno	< 1.6.3Affected

References

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