CVE-2019-5471 : An input validation and output encoding issue was discovered in the GitLab email notification feature which could result

An input validation and output encoding issue was discovered in the GitLab email notification feature which could result in a persistent XSS. This was addressed in GitLab 12.1.2, 12.0.4, and 11.11.6.

Published 2019-09-09 18:15:11

Updated 2023-03-01 01:03:11

Source HackerOne

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Exploit prediction scoring system (EPSS) score for CVE-2019-5471

EPSS FAQ

0.06%

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

~ 23 %

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

CVSS scores for CVE-2019-5471

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
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 ids for CVE-2019-5471

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)
support@hackerone.com (Secondary)

References for CVE-2019-5471

https://about.gitlab.com/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/

GitLab Security Release: 12.1.2, 12.0.4, and 11.11.7 | GitLab
Broken Link;Vendor Advisory

CVEs referencing this url
https://gitlab.com/gitlab-org/gitlab-ee/issues/11515

Persistent XSS via e-mail when adding an approver to a merge request (#11515) · Issues · GitLab.org / GitLab · GitLab
Exploit;Vendor Advisory

CVEs referencing this url
https://hackerone.com/reports/496973

#496973 Persistent XSS via e-mail when creating merge requests
Exploit;Third Party Advisory

Products affected by CVE-2019-5471

Gitlab » Gitlab » Enterprise Edition
Versions from including (>=) 11.11.0 and before (<) 11.11.7
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
Matching versions
Gitlab » Gitlab » Community Edition
Versions from including (>=) 11.11.0 and before (<) 11.11.7
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
Matching versions
Gitlab » Gitlab » Enterprise Edition
Versions from including (>=) 12.0.0 and before (<) 12.0.4
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
Matching versions
Gitlab » Gitlab » Community Edition
Versions from including (>=) 12.0.0 and before (<) 12.0.4
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
Matching versions
Gitlab » Gitlab » Community Edition
Versions from including (>=) 12.1.0 and before (<) 12.1.2
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
Matching versions
Gitlab » Gitlab » Enterprise Edition
Versions from including (>=) 12.1.0 and before (<) 12.1.2
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
Matching versions

Vulnerability Details : CVE-2019-5471

Exploit prediction scoring system (EPSS) score for CVE-2019-5471

CVSS scores for CVE-2019-5471

CWE ids for CVE-2019-5471

References for CVE-2019-5471

Products affected by CVE-2019-5471