CVE-2026-26273
Prior to 1.6.3, a Critical Broken Authentication vulnerability exists in Known 1.6.2 and earlier.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.90% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-640
- Affected
- withknown/known
- Source
- security-advisories@github.com
References
- https://github.com/idno/known/commit/8439a0747471559fb1ea9f074b929d390f27e66aPatch
- https://github.com/idno/known/releases/tag/1.6.3Product, Release Notes
- https://github.com/idno/known/security/advisories/GHSA-78wq-6gcv-w28rExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.