Vulnerability Details CVE-2025-55796
The openml/openml.org web application version v2.0.20241110 uses predictable MD5-based tokens for critical user workflows such as signup confirmation, password resets, email confirmation resends, and email change confirmation. These tokens are generated by hashing the current timestamp formatted as "%d %H:%M:%S" without incorporating any user-specific data or cryptographic randomness. This predictability allows remote attackers to brute-force valid tokens within a small time window, enabling unauthorized account confirmation, password resets, and email change approvals, potentially leading to account takeover.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.0%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2025-55796
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cpe:2.3:a:openml:openml.org:*