Critical

VaahCMS 2.0.0 - 2.3.4 Malicious JavaScript Supply Chain via security-otp.blade.php

Type: advisorySources: OSV

VaahCMS versions 2.0.0 through 2.3.4 contain a malicious obfuscated JavaScript payload embedded in the Blade template responsible for rendering security OTP emails, allowing remote attackers to execute unauthorized code in any browser that renders the affected email template with JavaScript enabled. The payload establishes a WebSocket connection to a hardcoded command-and-control endpoint, installs a password-field keylogger using MutationObserver to capture dynamically added inputs, scrapes WhatsApp Web DOM content, and accepts remote commands to redirect or overwrite the rendered page.

Products: Not specified
Affected versions: Not specified
Fixed versions: Not specified
CVEs: CVE-2026-67595
Confirmed fixed CVEs: Not specified
Updated in this feed: 2 Nov 2026, 21:31 UTC · Revision 1

Source evidence

VaahCMS 2.0.0 - 2.3.4 Malicious JavaScript Supply Chain via security-otp.blade.php

core-osv · Original source

Published 29 Jul 2026, 21:33 UTC

osv:CVE-2026-67595

Complete source record

{
  "id": "932423c897f89690d6445ff0b41fea8873898a53c81549689bc9289d073f2f7c",
  "url": "https://osv.dev/vulnerability/CVE-2026-67595",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "VaahCMS 2.0.0 - 2.3.4 Malicious JavaScript Supply Chain via security-otp.blade.php",
    "summary": "VaahCMS versions 2.0.0 through 2.3.4 contain a malicious obfuscated JavaScript payload embedded in the Blade template responsible for rendering security OTP emails, allowing remote attackers to execute unauthorized code in any browser that renders the affected email template with JavaScript enabled. The payload establishes a WebSocket connection to a hardcoded command-and-control endpoint, installs a password-field keylogger using MutationObserver to capture dynamically added inputs, scrapes WhatsApp Web DOM content, and accepts remote commands to redirect or overwrite the rendered page.",
    "evidence": "osv:CVE-2026-67595",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-67595",
      "aliases": [
        "CVE-2026-67595"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/webreinvent/vaahcms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a706f96a85bb16bdb412707b58614235d6bf6fdb"
                },
                {
                  "fixed": "8d7898f7a385a5fade1180a9b664ff158d873129"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "last_affected": "2.3.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8d7898f7a385a5fade1180a9b664ff158d873129"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.3.4",
            "v2.3.3",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.2.14",
            "v2.2.13",
            "v2.2.12",
            "v2.2.11",
            "v2.2.10",
            "v2.2.9",
            "v2.2.8",
            "v2.2.7",
            "v2.2.6",
            "v2.2.5",
            "v2.2.4",
            "v2.2.3",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.10",
            "v2.1.9",
            "v2.1.8",
            "v2.1.7",
            "v2.1.6",
            "v2.1.5",
            "v2.1.4",
            "v2.1.3",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.10",
            "v2.0.9",
            "v2.0.8",
            "v2.0.7",
            "v2.0.6",
            "v2.0.5",
            "v2.0.4",
            "v2.0.3",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67595.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.782400725Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67595.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-67595",
        "https://www.vulncheck.com/advisories/vaahcms-malicious-javascript-supply-chain-via-security-otp-blade-php",
        "https://github.com/webreinvent/vaahcms/pull/317",
        "https://github.com/webreinvent/vaahcms/commit/8d7898f7a385a5fade1180a9b664ff158d873129",
        "https://github.com/webreinvent/vaahcms"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-506"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67595.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-67595",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490286,
  "published_at": "2026-07-29T21:33:25.952+00:00"
}