Broken Authentication Vulnerability in Known Social Publishing Platform
CVE-2026-26273

9.8CRITICAL

Key Information:

Vendor

Idno

Status
Known
Vendor
CVE Published:
13 February 2026

What is CVE-2026-26273?

A significant flaw in the Known social publishing platform affects versions prior to 1.6.3, where the password reset token is exposed in a hidden HTML input field on the reset page. This allows attackers to obtain a user's reset token by submitting a query with the user's email, granting them the ability to execute an account takeover without needing access to the victim's email. Users are advised to update to version 1.6.3 or later to mitigate this risk.

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Affected Version(s)

known < 1.6.3

References

https://github.com/idno/known/security/advisories/GHSA-78...
x_refsource_CONFIRM
https://github.com/idno/known/commit/8439a0747471559fb1ea...
x_refsource_MISC
https://github.com/idno/known/releases/tag/1.6.3
x_refsource_MISC

CVSS V3.0

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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