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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-8865

This vulnerability allows remote attackers to execute local PHP files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within edit.php. When parsing the params[template] parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10469.

Products
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Affected versions
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Fixed versions
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CVEs
CVE-2020-8865
Confirmed fixed CVEs
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Updated in this feed
1 Nov 2026, 07:14 UTC · Revision 1

Source evidence

CVE-2020-8865

core-osv · Original source

Published 23 Mar 2020, 21:15 UTC

This vulnerability allows remote attackers to execute local PHP files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within edit.php. When parsing the params[template] parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10469.

osv:CVE-2020-8865
Complete source record
{
  "id": "54629eff44aec75053e7ee68e5397f7efd43d21367b50ffd7d8316515654362b",
  "url": "https://osv.dev/vulnerability/CVE-2020-8865",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8865",
    "summary": "This vulnerability allows remote attackers to execute local PHP files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within edit.php. When parsing the params[template] parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10469.",
    "evidence": "osv:CVE-2020-8865",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-8865",
      "aliases": [
        "CVE-2020-8865"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/horde/groupware",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cf488bd4e87e1ff0d9e11a5a3c2d2f805172dd70"
                },
                {
                  "last_affected": "cf488bd4e87e1ff0d9e11a5a3c2d2f805172dd70"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*",
                    "range": [
                      {
                        "introduced": "5.2.22"
                      },
                      {
                        "last_affected": "5.2.22"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.2.22",
            "v5.2.22"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8865.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/horde/horde",
              "type": "GIT",
              "events": [
                {
                  "introduced": "da4d701808c3af4100bd1f2d7f0fd07854267fa9"
                },
                {
                  "last_affected": "da4d701808c3af4100bd1f2d7f0fd07854267fa9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*",
                    "range": [
                      {
                        "introduced": "5.2.22"
                      },
                      {
                        "last_affected": "5.2.22"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.2.22",
            "webmail-5.2.22"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8865.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:50.561085789Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2020/04/msg00009.html",
        "https://www.zerodayinitiative.com/advisories/ZDI-20-276/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*"
            ],
            "vendor_product": "horde:groupware",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "5.2.22"
                  },
                  {
                    "last_affected": "5.2.22"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-8865",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437267,
  "published_at": "2020-03-23T21:15:12.567+00:00"
}