Vulnerability Details : CVE-2021-39881
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.
Products affected by CVE-2021-39881
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-39881
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39881
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
3.5
|
LOW | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |
2.1
|
1.4
|
GitLab Inc. | |
3.5
|
LOW | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |
2.1
|
1.4
|
NIST |
References for CVE-2021-39881
-
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39881.json
2021/CVE-2021-39881.json · master · GitLab.org / cves · GitLabVendor Advisory
-
https://gitlab.com/gitlab-org/gitlab/-/issues/26695
Not FoundBroken Link
-
https://hackerone.com/reports/494530
Sign inPermissions Required;Third Party Advisory
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