Account Takeover Risk in OpenML Web Application by OpenML
CVE-2025-55796

7.5HIGH

Key Information:

Vendor

OpenML

Vendor
CVE Published:
18 November 2025

What is CVE-2025-55796?

The OpenML web application (version v2.0.20241110) suffers from a security vulnerability that involves the use of predictable MD5-based tokens for crucial user interactions, including signup confirmations and password resets. These tokens are generated using a timestamp formatted without the inclusion of user-specific data or randomization, which makes them susceptible to brute-force attacks. As a result, attackers can exploit this lack of unpredictability to gain unauthorized access to user accounts, leading to potential scenarios such as account takeover. This issue emphasizes the need for implementing stronger token generation methodologies that include randomness and user-specific elements to enhance security.

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References

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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