CVE-2026-26273

Known affected by Account Takeover via Password Reset Token Leakage

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.

Affected

idno · known

CVSS v3.0 GITHUB

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

EPSS

1.30% chance of exploitation in the next 30 days, 70th percentile

Published

2026-02-13

Updated

2026-02-17

Proof-of-concept exploits (1)

• advisories/GHSA-78wq-6gcv-w28r

Security advisories

• idno/known/security/advisories/GHSA-78wq-6gcv-w28r
• idno/known/commit/8439a0747471559fb1ea9f074b929d390f27e66a

References

• CVE Record
• NVD entry