{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "13.5.0"
              },
              {
                "fixed": "17.8.6"
              }
            ]
          },
          "events": [
            {
              "introduced": "2f8ec2ebf58d8d4885127b9715b143e6756f2df1"
            },
            {
              "fixed": "27e19f1747ade9da7af660001a20e2dd47219a69"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "17.9"
              },
              {
                "fixed": "17.9.3"
              }
            ]
          },
          "events": [
            {
              "introduced": "f5041566b342c2f30a8d63b8117272c454e18410"
            },
            {
              "fixed": "3f8a07baae6b8ce6bcc5b35075d00164df3b3b60"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "17.10"
              },
              {
                "fixed": "17.10.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "ef8041bebeac4b902db1666c582a3de1d495ae39"
            },
            {
              "fixed": "6313c41c8800bdea9c525d84ebfc419cd7f29027"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GitLab",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2255.json"
  },
  "details": "An issue has been discovered in Gitlab EE/CE for AppSec affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Certain error messages could allow Cross-Site Scripting attacks (XSS). for AppSec.",
  "id": "CVE-2025-2255",
  "modified": "2026-04-01T23:09:10.403700072Z",
  "published": "2025-03-27T12:30:47.592Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2255.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2255"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/524635"
    },
    {
      "type": "REPORT",
      "url": "https://hackerone.com/reports/2994150"
    },
    {
      "type": "PACKAGE",
      "url": "git://git@gitlab.com:gitlab-org/gitlab.git"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab"
}