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CVE-2021-39881

LOW
Published 2021-10-05T13:40:33
Actions:

Expert Analysis

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CVSS Score

V3.1
3.5
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.484
Higher than 48.4% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
LOW
Availability
NONE

Description

In all versions of GitLab CE/EE since version 7.7, the application may let a malicious user create an OAuth client application with arbitrary scope names which may allow the malicious user to trick unsuspecting users to authorize the malicious client application using the spoofed scope name and description.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

GitLab

GitLab

Affected Versions:

>=7.7, <14.1.7 >=14.2, <14.2.5 >=14.3, <14.3.1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed LOW

GHSA-4ff8-x6j5-88r4

Advisory Details

In all versions of GitLab CE/EE since version 7.7, the application may let a malicious user create an OAuth client application with arbitrary scope names which may allow the malicious user to trick unsuspecting users to authorize the malicious client application using the spoofed scope name and description.

CVSS Scoring

CVSS Score

2.5

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-39881
WEB https://hackerone.com/reports/494530
WEB https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39881.json
WEB https://gitlab.com/gitlab-org/gitlab/-/issues/26695

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://gitlab.com/gitlab-org/gitlab/-/issues/26695
https://hackerone.com/reports/494530
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39881.json
Published: 2021-10-05T13:40:33
Last Modified: 2024-08-04T02:20:33.652Z
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