CVE-2020-13335 - CVE House
Back to Database
Status published Medium CVE-2020-13335

Improper group membership validation when deleting a user account in...

Vulnerability Description

Improper group membership validation when deleting a user account in GitLab >=7.12 allows a user to delete own account without deleting/transferring their group.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-13335

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Thanks [brdoors3](https://hackerone.com/brdoors3) for reporting this vulnerability through our HackerOne bug bounty program

References

More from GitLab

View All →
CVE-2025-9958
Insertion of Sensitive Information Into Sent Data in GitLab
High 7.7
CVE-2025-9957
Incorrect Authorization in GitLab
Low 2.7
CVE-2025-9825
Missing Authorization in GitLab
Medium 5
CVE-2025-9642
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
High 8.7
CVE-2025-9484
Missing Authorization in GitLab
Medium 4.3

Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
>=7.12, <13.2.10, >=13.3.0, <13.3.7, >=13.4.0, <13.4.2

Timeline

Official Publish: October 7th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.