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GHSA-78wq-6gcv-w28r
No affected components available
Summary
A Critical Broken Authentication vulnerability exists in Known 1.6.2. 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.
Details
The vulnerability occurs within the password reset flow. When a reset is requested, the application generates a verification code. However, the subsequent reset page (/account/password/reset/) incorrectly reflects this code back to the client in the HTML source code.
Specifically, the sensitive token is embedded in: <input type="hidden" name="code" value="[SECRET_TOKEN]">
Because this page is accessible via a GET request using the victim's email as a parameter, an attacker can programmatically extract the token.
PoC
- The attacker asks for a password reset for the victim
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The attacker makes the following curl command on the terminal using the victim's email, and is able to get the code that was sent as an hidden field in the HTML.
<img width="917" height="220" alt="image(2)" src="https://github.com/user-attachments/assets/af89ba3b-de56-4437-84b3-c1feb56d2348" /> -
With this code, the attacker is able to use it in order to reset the victim password.
<img width="1335" height="711" alt="image(3)" src="https://github.com/user-attachments/assets/498b8a2e-9eb2-4b50-bc35-26b0f2764c8d" />
- The attacker is able to login with the new password.
Impact
- An attacker can compromise any account on the platform, including administrative accounts, resulting in total loss of Confidentiality, Integrity, and Availability.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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