CVE-2023-0838

MEDIUM

GitLab 15.1-15.8.4, 15.9-15.9.3, 15.10 - Authenticated Webhook Secret Exposure via URL Parameter Injection

Title source: llm

Description

An issue has been discovered in GitLab affecting versions starting from 15.1 before 15.8.5, 15.9 before 15.9.4, and 15.10 before 15.10.1. A maintainer could modify a webhook URL to leak masked webhook secrets by adding a new parameter to the url. This addresses an incomplete fix for CVE-2022-4342.

References (3)

Core 3

Core References

Vendor Advisory

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0838.json

Broken Link

https://gitlab.com/gitlab-org/gitlab/-/issues/391685

Permissions Required

https://hackerone.com/reports/1871136

Scores

CVSS v3 5.5

EPSS 0.0095

EPSS Percentile 76.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-200

Status published

Products (2)

gitlab/gitlab 15.10.0 (2 CPE variants)

gitlab/gitlab 15.1.0 - 15.8.5 (2 CPE variants)

Published Apr 05, 2023

Tracked Since Feb 18, 2026