CVE-2021-22220 : An issue has been discovered in GitLab affecting all versions starting with 13.1

An issue has been discovered in GitLab affecting all versions starting with 13.10. GitLab was vulnerable to a stored XSS in blob viewer of notebooks.

Published 2021-06-08 20:15:08

Updated 2021-12-10 18:11:19

Source GitLab Inc.

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-22220

Gitlab » Gitlab
Versions from including (>=) 13.10 and up to, including, (<=) 13.10.5
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Matching versions
Gitlab » Gitlab
Versions from including (>=) 13.12 and up to, including, (<=) 13.12.2
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Matching versions
Gitlab » Gitlab
Versions from including (>=) 13.11 and up to, including, (<=) 13.11.5
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 28 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.5	LOW	AV:N/AC:M/Au:S/C:N/I:P/A:N	6.8	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	GitLab Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None
5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	2.3	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

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