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CVE-2020-13300

Good to know:

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Date: September 14, 2020

GitLab CE/EE version 13.3 prior to 13.3.4 was vulnerable to an OAuth authorization scope change without user consent in the middle of the authorization flow.

Language: Ruby

Severity Score

Related Resources (6)

https://gitlab.com/gitlab-org/gitlab/-/issues/219931
https://nvd.nist.gov/vuln/detail/CVE-2020-13300
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13300.json
https://hackerone.com/reports/884766
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-13300
https://www.mend.io/vulnerability-database/CVE-2020-13300

Severity Score

Weakness Type (CWE)

Incorrect Authorization

CWE-863

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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