CVE-2023-1279 - CVE House
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Status published Low CVE-2023-1279

URL Redirection to Untrusted Site in GitLab

Vulnerability Description

An issue has been discovered in GitLab affecting all versions starting from 4.1 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1 where it was possible to create a URL that would redirect to a different project.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

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

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Credits & Attribution

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

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

References

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CVE-2025-9642
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CVE-2025-9484
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Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
4.1, 16.2, 16.3

Timeline

Official Publish: September 1st, 2023
Last Modified: November 20th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

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

Weaknesses (CWE)

CWE-601

MITRE ATT&CK TTPs

T1566 Phishing
Initial Access
T1204 User Execution
Execution
T1071 Application Layer Protocol
Command and Control
T1189 Drive-by Compromise
Initial Access
T1036 Masquerading
Defense Evasion