Stored XSS in PluXml CMS

{
  "id": "7a19dd2622766e2f0b1608f6dd2dfe38d16b949ee202a76f466ef9bfd7f09fbf",
  "url": "https://osv.dev/vulnerability/CVE-2026-24351",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Stored XSS in PluXml CMS",
    "summary": "PluXml CMS is vulnerable to Stored XSS in Static Pages editing functionality. Attacker with editing privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edited page. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only versions 5.8.21 and 5.9.0-rc7 were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.",
    "evidence": "osv:CVE-2026-24351",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-24351",
      "aliases": [
        "CVE-2026-24351"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pluxml/pluxml",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e6655d865765635919da712f4c55c854a4882fce"
                },
                {
                  "last_affected": "e57e3bbe8479b77f7ea7c2ce51009c3defe39524"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pluxml:pluxml:5.8.21:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.8.21"
                      },
                      {
                        "last_affected": "5.8.21"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:pluxml:pluxml:5.9.0:rc7:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.9.0-rc7"
                      },
                      {
                        "last_affected": "5.9.0-rc7"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.8.21",
            "5.9.0-rc7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24351.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.669385371Z",
      "provider": "osv",
      "references": [
        "https://pluxml.org/",
        "https://cert.pl/posts/2026/03/CVE-2026-24350",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24351.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-24351"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "CERT-PL",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "5.9.0-rc7"
                  },
                  {
                    "last_affected": "5.9.0-rc7"
                  },
                  {
                    "introduced": "5.8.21"
                  },
                  {
                    "last_affected": "5.8.21"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24351.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-24351",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492497,
  "published_at": "2026-02-27T11:35:23.141+00:00"
}