Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Withknown | Known | < 1.6.3 |
Related Weaknesses (CWE)
References
- https://github.com/idno/known/commit/8439a0747471559fb1ea9f074b929d390f27e66aPatch
- https://github.com/idno/known/releases/tag/1.6.3ProductRelease Notes
- https://github.com/idno/known/security/advisories/GHSA-78wq-6gcv-w28rExploitVendor Advisory
FAQ
What is CVE-2026-26273?
CVE-2026-26273 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 ...
How severe is CVE-2026-26273?
CVE-2026-26273 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-26273?
Check the references section above for vendor advisories and patch information. Affected products include: Withknown Known.