{"cve":"CVE-2023-0838","nvd":{"published":"2023-04-05T21:15:07.153","modified":"2026-06-17T05:26:25.517","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N","score":3.8},"cwes":["CWE-200"],"references":["https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0838.json","https://gitlab.com/gitlab-org/gitlab/-/issues/391685","https://hackerone.com/reports/1871136","https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0838.json","https://gitlab.com/gitlab-org/gitlab/-/issues/391685"],"products":["gitlab:gitlab"],"source":"nvd","synced_at":"2026-10-19T21:37:48.383111019+00:00"},"epss":{"cve":"CVE-2023-0838","score":0.00731,"percentile":0.54302,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}