Vulnerability Details CVE-2020-7245
Incorrect username validation in the registration process of CTFd v2.0.0 - v2.2.2 allows an attacker to take over an arbitrary account if the username is known and emails are enabled on the CTFd instance. To exploit the vulnerability, one must register with a username identical to the victim's username, but with white space inserted before and/or after the username. This will register the account with the same username as the victim. After initiating a password reset for the new account, CTFd will reset the victim's account password due to the username collision.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 59.0%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 6.8
References
Products affected by CVE-2020-7245
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cpe:2.3:a:ctfd:ctfd:2.0.0
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cpe:2.3:a:ctfd:ctfd:2.0.1
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cpe:2.3:a:ctfd:ctfd:2.0.2
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cpe:2.3:a:ctfd:ctfd:2.0.3
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cpe:2.3:a:ctfd:ctfd:2.0.4
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cpe:2.3:a:ctfd:ctfd:2.0.5
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cpe:2.3:a:ctfd:ctfd:2.0.6
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cpe:2.3:a:ctfd:ctfd:2.1.0
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cpe:2.3:a:ctfd:ctfd:2.1.1
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cpe:2.3:a:ctfd:ctfd:2.1.2
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cpe:2.3:a:ctfd:ctfd:2.1.3
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cpe:2.3:a:ctfd:ctfd:2.1.4
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cpe:2.3:a:ctfd:ctfd:2.1.5
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cpe:2.3:a:ctfd:ctfd:2.2.0
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cpe:2.3:a:ctfd:ctfd:2.2.1
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cpe:2.3:a:ctfd:ctfd:2.2.2