SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area

{
  "id": "406828c1b16dd530cad18f32c69eb393525dac75114c6f9f04d1400bf5eeadcb",
  "url": "https://osv.dev/vulnerability/CVE-2026-26223",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area",
    "summary": "SPIP before 4.4.8 allows cross-site scripting (XSS) in the private area via malicious iframe tags. The application does not properly sandbox or escape iframe content in the back-office, allowing an attacker to inject and execute malicious scripts. The fix adds a sandbox attribute to iframe tags in the private area. This vulnerability is not mitigated by the SPIP security screen.",
    "evidence": "osv:CVE-2026-26223",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-26223",
      "aliases": [
        "CVE-2026-26223"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.spip.net/spip/spip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "34c023d47b424b5b4daebe8be37e2c4f1142ebc0"
                },
                {
                  "fixed": "70220f88459c9e4ccefa49e64b56d21963278578"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "4.4.0"
                      },
                      {
                        "fixed": "4.4.8"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:spip:spip:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.4.0"
                      },
                      {
                        "fixed": "4.4.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.7",
            "4.4.6",
            "4.4.5",
            "4.4.4",
            "4.4.3",
            "4.4.2",
            "4.4.1",
            "4.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26223.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.601866416Z",
      "provider": "osv",
      "references": [
        "https://git.spip.net/spip/spip",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26223.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-26223",
        "https://www.vulncheck.com/advisories/spip-cross-site-scripting-via-iframe-tags-in-private-area",
        "https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-8.html"
      ],
      "provider_metadata": {
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26223.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-26223",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 516991,
  "published_at": "2026-02-19T15:26:05.652+00:00"
}