Security advisory

{
  "id": "b6f24b3ea35ee5ea9c6fa09d9697378cba9a577fa048f783249740949330b33e",
  "url": "https://osv.dev/vulnerability/CVE-2021-28115",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-28115",
    "summary": "The OUGC Feedback plugin before 1.8.23 for MyBB allows XSS via the comment field of feedback during an edit operation.",
    "evidence": "osv:CVE-2021-28115",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-28115",
      "aliases": [
        "CVE-2021-28115"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/OUGC-Network/ougc-Feedback",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f05b55df9ee3bb52f4d4c1f773f7616b539b178c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ougc_feedback_project:ougc_feedback:*:*:*:*:*:mybb:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.8.23"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.8.22",
            "1.8.19"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28115.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:36.720301927Z",
      "provider": "osv",
      "references": [
        "https://github.com/Sama34/OUGC-Feedback/pull/31/commits/ceef7c06359e5dcbaffe90a40884265c5754068c"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-28115",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385726,
  "published_at": "2021-03-09T22:15:12.803+00:00"
}