Security advisory

{
  "id": "78f2484b289cf4c320d1e65f9156dc85bd6e757a35aa7e1a1c819ac97d49cc08",
  "url": "https://osv.dev/vulnerability/CVE-2016-2539",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-2539",
    "summary": "Cross-site request forgery (CSRF) vulnerability in install_modules.php in ATutor before 2.2.2 allows remote attackers to hijack the authentication of users for requests that upload arbitrary files and execute arbitrary PHP code via vectors involving a crafted zip file.",
    "evidence": "osv:CVE-2016-2539",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2016-2539",
      "aliases": [
        "CVE-2016-2539"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/atutor/atutor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "68285ea31de595c67d5f60720fb76d49c6347f3a"
                },
                {
                  "fixed": "bfc6c80c6c217c5515172f3cc949e13dfa1a92ac"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:atutor:atutor:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bfc6c80c6c217c5515172f3cc949e13dfa1a92ac"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "atutor_2_2_1",
            "atutor_2_2",
            "atutor_2_1_1",
            "atutor_2_1",
            "atutor_1_5_5",
            "atutor_1_5_3_3",
            "atutor_1_5_3_2",
            "atutor_1_5_3_1",
            "atutor_1_5_3",
            "atutor_1_5_2",
            "atutor_1_5_1",
            "atutor_1_5",
            "atutor_1_4_2",
            "start"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-2539.json"
          }
        }
      ],
      "modified": "2026-10-20T10:45:56.737014518Z",
      "provider": "osv",
      "references": [
        "https://www.exploit-db.com/exploits/39524/",
        "https://github.com/atutor/ATutor/commit/bfc6c80c6c217c5515172f3cc949e13dfa1a92ac",
        "https://packetstormsecurity.com/files/136109/ATutor-LMS-2.2.1-CSRF-Remote-Code-Execution.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-2539",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379306,
  "published_at": "2017-02-07T15:59:00.257+00:00"
}