{
  "id": "CVE-2018-6882",
  "url": "https://spydr.io/cve/CVE-2018-6882",
  "published": "2018-03-27T16:29:00.530Z",
  "modified": "2026-10-01T20:17:17.443Z",
  "score": 6.1,
  "severity": "medium",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "score_source": "NVD",
  "epss": 0.29761,
  "epss_percentile": 0.98159,
  "exploited": true,
  "kev": {
    "added": "2022-04-19",
    "due": "2022-05-10",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Known",
    "name": "Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-6882"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "synacor"
  ],
  "products": [
    "synacor zimbra collaboration suite"
  ],
  "cwes": [
    "CWE-79"
  ],
  "description": "Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 6.1,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://seclists.org/fulldisclosure/2018/Mar/52",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/archive/1/541891/100/0/threaded",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://bugzilla.zimbra.com/show_bug.cgi?id=108786",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Permissions Required"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7",
      "tags": [
        "Permissions Required"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-due-to-the-way-it-handles-attachment-links.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6882",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6882",
  "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."
    }
  ]
}