Information disclosure in Idno Known

CVE-2026-26273

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…

Vulnerability class: Information Disclosure

EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-26273?
CVE-2026-26273 is a critical-severity vulnerability in Idno Known, classified under Information Disclosure. CVSS score: 9.8/10. Published 2026-02-13.
How severe is CVE-2026-26273?
Critical severity. CVSS v3 base score is 9.8 out of 10.