{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:thm:pilos:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.8.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "abc974d1ed81995ff6cadf7184d5d5c11e57e215"
            },
            {
              "fixed": "14655bc4f8128ffd2b3c25004b01d9a802808da8"
            }
          ],
          "repo": "https://github.com/thm-health/pilos",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pgfw-f4mp-5445"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-942"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62523.json"
  },
  "details": "PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. PILOS before 4.8.0 includes a Cross-Origin Resource Sharing (CORS) misconfiguration in its middleware: it reflects the Origin request header back in the Access-Control-Allow-Origin response header without proper validation or a whitelist, while Access-Control-Allow-Credentials is set to true. This behavior could allow a malicious website on a different origin to send requests (including credentials) to the PILOS API. This may enable exfiltration or actions using the victim’s credentials if the server accepts those cross-origin requests as authenticated. Laravel’s session handling applies additional origin checks such that cross-origin requests are not authenticated by default. Because of these session-origin protections, and in the absence of any other unknown vulnerabilities that would bypass Laravel’s origin/session checks, this reflected-Origin CORS misconfiguration is not believed to be exploitable in typical PILOS deployments. This vulnerability has been patched in PILOS in v4.8.0",
  "id": "CVE-2025-62523",
  "modified": "2026-08-12T03:51:47.460561817Z",
  "published": "2025-10-27T20:10:51.351Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62523.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/THM-Health/PILOS/security/advisories/GHSA-pgfw-f4mp-5445"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62523"
    },
    {
      "type": "FIX",
      "url": "https://github.com/THM-Health/PILOS/commit/14655bc4f8128ffd2b3c25004b01d9a802808da8"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PILOS Misconfigured the Access-Control-Allow-Origin Header"
}