{
  "id": "CVE-2023-34192",
  "url": "https://spydr.io/cve/CVE-2023-34192",
  "published": "2023-07-06T16:15:10.047Z",
  "modified": "2026-06-17T06:03:05.923Z",
  "score": 9,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.77266,
  "epss_percentile": 0.99545,
  "exploited": true,
  "kev": {
    "added": "2025-02-25",
    "due": "2025-03-18",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability",
    "notes": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories ; https://nvd.nist.gov/vuln/detail/CVE-2023-34192"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "synacor"
  ],
  "products": [
    "synacor zimbra collaboration suite"
  ],
  "cwes": [
    "CWE-79"
  ],
  "description": "Cross Site Scripting vulnerability in Zimbra ZCS v.8.8.15 allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://wiki.zimbra.com/wiki/Security_Center",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34192",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34192",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}