CVE-2026-26273

critical

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.

References

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

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

https://github.com/idno/known/commit/8439a0747471559fb1ea9f074b929d390f27e66a

Details

Source: Mitre, NVD

Published: 2026-02-13

Updated: 2026-02-18

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00084