{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4453d39ddc6309f3bc8ada73ef21e1971112de7d"
            }
          ],
          "repo": "https://github.com/avo-hq/avo",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "bc1d755e24ed544327893cc162dca31b366dc360"
            }
          ],
          "repo": "https://github.com/avo-hq/avo",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-762r-27w2-q22j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33209.json"
  },
  "details": "Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. This issue has been patched in version 3.30.3.",
  "id": "CVE-2026-33209",
  "modified": "2026-04-01T23:08:03.014396986Z",
  "published": "2026-03-20T22:39:19.422Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/avo-hq/avo/releases/tag/v3.30.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33209.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/avo-hq/avo/security/advisories/GHSA-762r-27w2-q22j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33209"
    },
    {
      "type": "FIX",
      "url": "https://github.com/avo-hq/avo/commit/4453d39ddc6309f3bc8ada73ef21e1971112de7d"
    },
    {
      "type": "FIX",
      "url": "https://github.com/avo-hq/avo/pull/4330"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Avo has a XSS vulnerability on `return_to` param"
}