Critical severityNVD Advisory· Published Feb 13, 2026· Updated Feb 17, 2026
Known affected by Account Takeover via Password Reset Token Leakage
CVE-2026-26273
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
idno/knownPackagist | < 1.6.3 | 1.6.3 |
Affected products
2- idno/knownv5Range: < 1.6.3
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-78wq-6gcv-w28rghsaADVISORY
- github.com/idno/known/commit/8439a0747471559fb1ea9f074b929d390f27e66aghsax_refsource_MISCWEB
- github.com/idno/known/releases/tag/1.6.3ghsax_refsource_MISCWEB
- github.com/idno/known/security/advisories/GHSA-78wq-6gcv-w28rghsax_refsource_CONFIRMWEB
News mentions
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