{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:piwigo:piwigo:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "16.3.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "69f1f76192e6e692f575a5f79c194655dee2d5ca"
            },
            {
              "fixed": "d05c16561ce3692ca922199f8c8d7b1a45893f1c"
            }
          ],
          "repo": "https://github.com/piwigo/piwigo",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-397m-gfhm-pmg2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27833.json"
  },
  "details": "Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the pwg.history.search API method in Piwigo is registered without the admin_only option, allowing unauthenticated users to access the full browsing history of all gallery visitors. This issue has been patched in version 16.3.0.",
  "id": "CVE-2026-27833",
  "modified": "2026-08-12T03:51:46.334460979Z",
  "published": "2026-04-03T21:34:11.425Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://piwigo.org/release-16.3.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27833.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Piwigo/Piwigo/security/advisories/GHSA-397m-gfhm-pmg2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27833"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Piwigo/Piwigo/commit/d05c16561ce3692ca922199f8c8d7b1a45893f1c"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Piwigo: Unauthenticated Information Disclosure via pwg.history.search API"
}