Security advisory

{
  "id": "5a85c3520c3fd18eaf494e99c8a0e53c6a5262bba5dc89cad2eee2e1b2b4c062",
  "url": "https://osv.dev/vulnerability/CVE-2020-22839",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-22839",
    "summary": "Reflected cross-site scripting vulnerability (XSS) in the evoadm.php file in b2evolution cms version 6.11.6-stable allows remote attackers to inject arbitrary webscript or HTML code via the tab3 parameter.",
    "evidence": "osv:CVE-2020-22839",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-22839",
      "aliases": [
        "CVE-2020-22839"
      ],
      "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/b2evolution/b2evolution",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c4c3c02c00b937f312676003d820ad72f4813631"
                },
                {
                  "last_affected": "c4c3c02c00b937f312676003d820ad72f4813631"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:b2evolution:b2evolution_cms:6.11.6:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.11.6"
                      },
                      {
                        "last_affected": "6.11.6"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "6.11.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22839.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:39.662872884Z",
      "provider": "osv",
      "references": [
        "https://sohambakore.medium.com/b2evolution-cms-reflected-xss-in-tab-type-parameter-in-evoadm-php-38886216cdd3",
        "https://www.exploit-db.com/exploits/49555"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-22839",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434720,
  "published_at": "2021-02-09T20:15:12.94+00:00"
}