{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.3.5"
              },
              {
                "last_affected": "2.6.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "80676e4c9197758f5c793aa97aa86c1c088f988d"
            },
            {
              "last_affected": "87696c92730d75785d17b515125be3862cdfb49e"
            }
          ],
          "repo": "https://github.com/s9y/serendipity",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6c2x-mjmq-vx4q"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73628.json"
  },
  "details": "Serendipity versions \u003e= 2.3.5 and \u003c= 2.6.0 contain a reflected cross-site scripting vulnerability in the search clean-URL route (/search/\u003cterm\u003e). In include/functions_routing.inc.php serveSearch(), the sanitisation pipeline runs urldecode() after HTML-encoding, so a single URL-encoded HTML payload survives strip_tags() and htmlspecialchars() and is then decoded back into live HTML in the page. A crafted search link can execute arbitrary JavaScript in the victim's browser. Fixed in 2.6.1.",
  "id": "CVE-2026-73628",
  "modified": "2026-10-02T03:30:29.484839781Z",
  "published": "2026-08-13T11:28:26.954Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73628.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/s9y/Serendipity/security/advisories/GHSA-6c2x-mjmq-vx4q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73628"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/serendipity-reflected-xss-via-search-clean-url-route"
    }
  ],
  "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": "Serendipity 2.3.5 Reflected XSS via search clean-URL route"
}