CVE-2020-7245

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Source

https://cve.org/CVERecord?id=CVE-2020-7245

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7245.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2020-7245

Published

2020-01-23T23:15:11.597Z

Modified

2026-03-14T14:48:18.278109Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

Git / github.com/ctfd/ctfd

Affected ranges

Type

GIT

Repo

https://github.com/ctfd/ctfd

Events

Introduced

809e4df4719fa63841ff3f28175f9a09da31963a

Last affected

fe85fdf1e5561e9f04c1c80c72e894dcd7ea3ad7

Fixed

d59bfa3578b0e5ac8dd3570038d123014372a81c

Database specific

{
    "versions": [
        {
            "introduced": "2.0.0"
        },
        {
            "last_affected": "2.2.2"
        }
    ]
}

Affected versions

2.*

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

2.0.6

2.1.0

2.1.1

2.1.2

2.1.3

2.1.4

2.1.5

2.2.0

2.2.1

2.2.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7245.json"