{
  "id": "CVE-2022-24682",
  "url": "https://spydr.io/cve/CVE-2022-24682",
  "published": "2022-02-09T04:15:07.400Z",
  "modified": "2026-08-07T05:16:55.740Z",
  "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": 0.30931,
  "epss_percentile": 0.98217,
  "exploited": true,
  "kev": {
    "added": "2022-02-25",
    "due": "2022-03-11",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Known",
    "name": "Synacor Zimbra Collaborate Suite (ZCS) Cross-Site Scripting Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2022-24682"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "synacor"
  ],
  "products": [
    "synacor zimbra collaboration suite"
  ],
  "cwes": [
    "CWE-116"
  ],
  "description": "An issue was discovered in the Calendar feature in Zimbra Collaboration Suite 8.8.x before 8.8.15 patch 30 (update 1), as exploited in the wild starting in December 2021. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 6.1,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://blog.zimbra.com/2022/02/hotfix-available-5-feb-for-zero-day-exploit-vulnerability-in-zimbra-8-8-15/",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Security_Center",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P30",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.volexity.com/blog/2022/02/03/operation-emailthief-active-exploitation-of-zero-day-xss-vulnerability-in-zimbra/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24682",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24682",
  "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."
    }
  ]
}