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Xibo CMS vulnerable to Remote Code Execution through Zip Slip

Type: advisorySources: OSV

Xibo is a content management system (CMS). A path traversal vulnerability exists in the Xibo CMS whereby a specially crafted zip file can be uploaded to the CMS via the layout import function by an authenticated user which would allow creation of files outside of the CMS library directory as the webserver user. This can be used to upload a PHP webshell inside the web root directory and achieve remote code execution as the webserver user. Users should upgrade to version 2.3.17 or 3.3.5, which fix this issue. Customers who host their CMS with Xibo Signage have already received an upgrade or patch to resolve this issue regardless of the CMS version that they are running.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-33177
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 02:24 UTC · Revision 1

Source evidence

Xibo CMS vulnerable to Remote Code Execution through Zip Slip

core-osv · Original source

Published 30 May 2023, 19:12 UTC

Xibo is a content management system (CMS). A path traversal vulnerability exists in the Xibo CMS whereby a specially crafted zip file can be uploaded to the CMS via the layout import function by an authenticated user which would allow creation of files outside of the CMS library directory as the webserver user. This can be used to upload a PHP webshell inside the web root directory and achieve remote code execution as the webserver user. Users should upgrade to version 2.3.17 or 3.3.5, which fix this issue. Customers who host their CMS with Xibo Signage have already received an upgrade or patch to resolve this issue regardless of the CMS version that they are running.

osv:CVE-2023-33177
Complete source record
{
  "id": "76e5287a93656fefc68a5144e3b8c02e11294d7340ebe1bb9634328959f4f49b",
  "url": "https://osv.dev/vulnerability/CVE-2023-33177",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Xibo CMS vulnerable to Remote Code Execution through Zip Slip",
    "summary": "Xibo is a content management system (CMS). A path traversal vulnerability exists in the Xibo CMS whereby a specially crafted zip file can be uploaded to the CMS via the layout import function by an authenticated user which would allow creation of files outside of the CMS library directory as the webserver user. This can be used to upload a PHP webshell inside the web root directory and achieve remote code execution as the webserver user. Users should upgrade to version 2.3.17 or 3.3.5, which fix this issue. Customers who host their CMS with Xibo Signage have already received an upgrade or patch to resolve this issue regardless of the CMS version that they are running.",
    "evidence": "osv:CVE-2023-33177",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-33177",
      "aliases": [
        "CVE-2023-33177",
        "GHSA-jj27-x85q-crqv"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/xibosignage/xibo-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d883a99c453a0a394c1c7e59d1f3c0e6b3958af1"
                },
                {
                  "fixed": "272c5ab9b0dab799075123345430e21c56ee53d7"
                },
                {
                  "introduced": "315ebd9141b67cbce134068cd31277a0075c1931"
                },
                {
                  "fixed": "6f5d4dd0c4a177faca6268a322a557afd4e17296"
                },
                {
                  "fixed": "1cbba380fa751a00756e70d7b08b5c6646092658"
                },
                {
                  "fixed": "45c6b53c3978639db03b63270a56f4397f49b2c9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:xibosignage:xibo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.8.0"
                      },
                      {
                        "fixed": "2.3.17"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:xibosignage:xibo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.3.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1cbba380fa751a00756e70d7b08b5c6646092658"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "45c6b53c3978639db03b63270a56f4397f49b2c9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.4",
            "2.3.16",
            "3.3.3",
            "3.3.2",
            "3.3.1",
            "3.3.0",
            "3.2.1",
            "3.2.0",
            "3.1.4",
            "3.1.3",
            "3.1.2",
            "3.1.1",
            "3.1.0",
            "2.3.15",
            "3.1.0-beta",
            "2.3.14",
            "2.3.13",
            "3.1.0-alpha",
            "2.3.12",
            "2.3.11",
            "3.0.0-rc1",
            "3.0.0-beta",
            "3.0.0-alpha3",
            "3.0.0-alpha2",
            "3.0.0-alpha",
            "2.3.0-rc1",
            "2.3.0-beta",
            "2.3.0-alpha",
            "2.2.0-alpha",
            "2.2.0-rc1",
            "2.2.0-alpha2",
            "2.2.0-beta",
            "2.1.0-rc1",
            "2.1.0-beta",
            "2.1.0-alpha2",
            "2.1.0-alpha1",
            "2.0.0-rc1",
            "2.0.0-beta.2",
            "2.0.0-beta",
            "2.0.0-alpha1",
            "1.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-33177.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.295413847Z",
      "provider": "osv",
      "references": [
        "https://claroty.com/team82/disclosure-dashboard",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33177.json",
        "https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-jj27-x85q-crqv",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-33177",
        "https://xibosignage.com/blog/security-advisory-2023-05/",
        "https://github.com/xibosignage/xibo-cms/commit/1cbba380fa751a00756e70d7b08b5c6646092658",
        "https://github.com/xibosignage/xibo-cms/commit/45c6b53c3978639db03b63270a56f4397f49b2c9"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33177.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-33177",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517336,
  "published_at": "2023-05-30T19:12:01.606+00:00"
}