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MeshCentral cross-site websocket hijacking (CSWSH) vulnerability

Type: advisorySources: OSV

MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform administrative actions on the server. The vulnerability is exploitable when an attacker is able to convince a victim end-user to click on a malicious link to a page hosting an attacker-controlled site. The attacker can then originate a cross-site websocket connection using client-side JavaScript code to connect to `control.ashx` as the victim user within MeshCentral. Version 1.1.21 contains a patch for this issue.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2024-26135
Confirmed fixed CVEs
Not specified
Updated in this feed
6 Nov 2026, 00:51 UTC · Revision 1

Source evidence

MeshCentral cross-site websocket hijacking (CSWSH) vulnerability

core-osv · Original source

Published 20 Feb 2024, 19:50 UTC

MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform administrative actions on the server. The vulnerability is exploitable when an attacker is able to convince a victim end-user to click on a malicious link to a page hosting an attacker-controlled site. The attacker can then originate a cross-site websocket connection using client-side JavaScript code to connect to `control.ashx` as the victim user within MeshCentral. Version 1.1.21 contains a patch for this issue.

osv:CVE-2024-26135
Complete source record
{
  "id": "9ffdf273653c074daaf05b9bed7a8e4ee33a5541caa50db6d1e9ceda3a31695c",
  "url": "https://osv.dev/vulnerability/CVE-2024-26135",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MeshCentral cross-site websocket hijacking (CSWSH) vulnerability",
    "summary": "MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform administrative actions on the server. The vulnerability is exploitable when an attacker is able to convince a victim end-user to click on a malicious link to a page hosting an attacker-controlled site. The attacker can then originate a cross-site websocket connection using client-side JavaScript code to connect to `control.ashx` as the victim user within MeshCentral. Version 1.1.21 contains a patch for this issue.",
    "evidence": "osv:CVE-2024-26135",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-26135",
      "aliases": [
        "CVE-2024-26135",
        "GHSA-cp68-qrhr-g9h8"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ylianst/meshcentral",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3e04e4d8c674707a94d68192987b2e1230a27218"
                },
                {
                  "fixed": "f2e43cc6da9f5447dbff0948e6c6024c8a315af3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:meshcentral:meshcentral:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.1.21"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f2e43cc6da9f5447dbff0948e6c6024c8a315af3"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.1.20",
            "1.1.19",
            "1.1.18",
            "1.1.17",
            "1.1.16",
            "1.1.15",
            "1.1.14",
            "1.1.13",
            "1.1.12",
            "1.1.11",
            "1.1.10",
            "1.1.9",
            "1.1.8",
            "1.1.7",
            "1.1.6",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.0.99",
            "1.0.98",
            "1.0.97",
            "1.0.96",
            "1.0.95",
            "1.0.94",
            "1.0.93",
            "1.0.92",
            "1.0.91",
            "1.0.90",
            "1.0.89",
            "1.0.88",
            "1.0.87",
            "1.0.86",
            "1.0.85",
            "1.0.84",
            "1.0.83",
            "1.0.82",
            "1.0.81",
            "1.0.80",
            "1.0.79",
            "1.0.78",
            "1.0.77",
            "1.0.76",
            "MeshCentral_v1.0.75",
            "1.0.75",
            "1.0.74",
            "1.0.73",
            "1.0.72",
            "1.0.71",
            "1.0.70",
            "1.0.69",
            "1.0.68",
            "1.0.67",
            "1.0.66",
            "1.0.65",
            "1.0.64",
            "1.0.63",
            "1.0.62",
            "1.0.61",
            "1.0.60",
            "1.0.59",
            "1.0.58",
            "1.0.57",
            "1.0.56",
            "1.0.55",
            "1.0.54",
            "1.0.53",
            "1.0.52",
            "1.0.51",
            "1.0.50",
            "1.0.49",
            "1.0.48",
            "1.0.47",
            "1.0.46",
            "1.0.45",
            "v1.0.45",
            "MeshCentral_v1.0.44",
            "MeshCentral_v1.0.2",
            "MeshCentral_v1.0.1",
            "MeshCentral_v0.9.85",
            "MeshCentral_v0.9.81",
            "MeshCentral_v0.9.66",
            "MeshCentral_v0.9.16",
            "MeshCentral_v0.8.98",
            "MeshCentral_v0.7.65",
            "MeshCentral_v0.7.59",
            "MeshCentral_v0.7.48",
            "MeshCentral_v0.7.44"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26135.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.602986675Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26135.json",
        "https://github.com/Ylianst/MeshCentral/security/advisories/GHSA-cp68-qrhr-g9h8",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26135",
        "https://github.com/Ylianst/MeshCentral/commit/f2e43cc6da9f5447dbff0948e6c6024c8a315af3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-346"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26135.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-26135",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513631,
  "published_at": "2024-02-20T19:50:30.723+00:00"
}