{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.0.0"
              },
              {
                "fixed": "1.0.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0d554e939a315e7f7f18fba3ca1132b80c6a1adb"
            }
          ],
          "repo": "https://github.com/cotonti/cotonti",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93869.json"
  },
  "details": "Cotonti through 1.0.0 contains an open redirect vulnerability in the cot_url_check() function that validates redirect destinations using a regular expression lacking an end-of-string anchor. Attackers can bypass the redirect guard by supplying hostnames beginning with the site domain to redirect users to attacker-controlled hosts through the ratings plugin or other redirect callers.",
  "id": "CVE-2026-93869",
  "modified": "2026-09-25T03:31:02.024529317Z",
  "published": "2026-09-18T19:56:35.457Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93869.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93869"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-cot-url-check-regex"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Cotonti/Cotonti/issues/1891"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Cotonti/Cotonti/pull/1899"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Cotonti/Cotonti"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex"
}