LimeSurvey Community Edition 7.0.5 - Stored XSS in quota message rendering

{
  "id": "ecdfde3b1629a0661f4198f1d07aa0d8e5b2ed2ec4ef9609c0ce214c6f031fc1",
  "url": "https://osv.dev/vulnerability/CVE-2026-16809",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "LimeSurvey Community Edition 7.0.5 - Stored XSS in quota message rendering",
    "summary": "LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message. This issue affects LimeSurvey: 7.0.5.",
    "evidence": "osv:CVE-2026-16809",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-16809",
      "aliases": [
        "CVE-2026-16809"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/limesurvey/limesurvey",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ccc07bf9ae26313f3e2203eb5f7fe4ac8ed52d2c"
                },
                {
                  "last_affected": "ccc07bf9ae26313f3e2203eb5f7fe4ac8ed52d2c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "7.0.5"
                      },
                      {
                        "last_affected": "7.0.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.0.5",
            "7.0.5+260623"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-16809.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.393760894Z",
      "provider": "osv",
      "references": [
        "https://fluidattacks.com/es/advisories/wellerman",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/16xxx/CVE-2026-16809.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-16809",
        "https://github.com/LimeSurvey/LimeSurvey"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "Fluid Attacks",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/16xxx/CVE-2026-16809.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-16809",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 506608,
  "published_at": "2026-08-26T21:39:12.944+00:00"
}