CVE-2026-26273

EUVD-2026-7362
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_MCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
Affected Products (NVD)
VendorProductVersion
withknownknown
𝑥
< 1.6.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/idno/known/commit/8439a0747471559fb1ea9f074b929d390f27e66a
https://github.com/idno/known/releases/tag/1.6.3
https://github.com/idno/known/security/advisories/GHSA-78wq-6gcv-w28r