CVE-2026-26273 PUBLISHED

Known affected by Account Takeover via Password Reset Token Leakage

Assigner: GitHub_M
Reserved: 12.02.2026 Published: 13.02.2026 Updated: 13.02.2026

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.

Metrics

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

Product Status

Vendor idno
Product known
Versions
  • Version < 1.6.3 is affected

References

Problem Types

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