pgAdmin 4: Stored XSS via crafted PostgreSQL object names in Browser Tree and Explain Visualizer

{
  "id": "f74f7a58980cbd8cdfb7fed5782fe3f36692dde3737339267d00570f42bdcd3f",
  "url": "https://osv.dev/vulnerability/CVE-2026-7814",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pgAdmin 4: Stored XSS via crafted PostgreSQL object names in Browser Tree and Explain Visualizer",
    "summary": "Stored cross-site scripting (XSS) vulnerability in pgAdmin 4 Browser Tree and Explain Visualizer modules. User-controlled PostgreSQL object names (database, schema, table, column, etc.) were assigned to DOM elements via innerHTML, allowing crafted object names containing HTML markup to execute attacker-supplied JavaScript in the browser of any pgAdmin user who navigated to or executed EXPLAIN over the malicious object. Fix replaces innerHTML with textContent. This issue affects pgAdmin 4: before 9.15.",
    "evidence": "osv:CVE-2026-7814",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-7814",
      "aliases": [
        "CVE-2026-7814",
        "GHSA-6p2c-69cv-3fxq",
        "PYSEC-2026-2866"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pgadmin-org/pgadmin4",
              "type": "GIT",
              "events": [
                {
                  "introduced": "31be1ae02619ebd11402af2a3f53b62c8d0cafd3"
                },
                {
                  "fixed": "86a8b165abbefd62e78fd43edcd66c0d09649442"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "6.9"
                      },
                      {
                        "fixed": "9.15"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:postgresql:*:*",
                    "range": [
                      {
                        "introduced": "6.9"
                      },
                      {
                        "fixed": "9.15"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "REL-9_14",
            "REL-9_13",
            "REL-9_12",
            "REL-9_11",
            "REL-9_10",
            "REL-9_9",
            "REL-9_8",
            "REL-9_7",
            "REL-9_6",
            "REL-9_5",
            "REL-9_4",
            "REL-9_3",
            "REL-9_2",
            "REL-9_1",
            "REL-9_0",
            "REL-8_14",
            "REL-8_13",
            "REL-8_12",
            "REL-8_11",
            "REL-8_10",
            "REL-8_9",
            "REL-8_8",
            "REL-8_7",
            "REL-8_6",
            "REL-8_5",
            "REL-8_4",
            "REL-8_3",
            "REL-8_2",
            "REL-8_1",
            "REL-8_0",
            "REL-7_8",
            "REL-7_7",
            "REL-7_6",
            "REL-7_5",
            "REL-7_4",
            "REL-7_3",
            "REL-7_2",
            "REL-7_1",
            "REL-7_0",
            "REL-6_21",
            "REL-6_20",
            "REL-6_19",
            "REL-6_18",
            "REL-6_17",
            "REL-6_16",
            "REL-6_15",
            "REL-6_14",
            "REL-6_13",
            "REL-6_12",
            "REL-6_11",
            "REL-6_10",
            "REL-6_9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-7814.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.590151620Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7814.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-7814",
        "https://github.com/pgadmin-org/pgadmin4/pull/9865",
        "https://github.com/pgadmin-org/pgadmin4",
        "https://github.com/pgadmin-org/pgadmin4/issues/9865"
      ],
      "provider_metadata": {
        "cna_assigner": "PostgreSQL",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7814.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-7814",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504795,
  "published_at": "2026-05-11T14:35:49.411+00:00"
}