{"uuid": "b3c2f122-aadb-4836-9329-f2c7a6f3ce11", "vulnerability": {"vulnId": "CVE-2024-27443", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "b3c2f122-aadb-4836-9329-f2c7a6f3ce11"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2025-05-19T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2025-05-19T00:00:00Z", "recorded_at": "2026-02-02T13:24:01Z", "first_seen_at": "2025-05-19T00:00:00Z"}, "scope": {"notes": "KEV entry: Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability | Affected: Synacor / Zimbra Collaboration Suite (ZCS) | Description: Zimbra Collaboration contains a cross-site scripting (XSS) vulnerability in the CalendarInvite feature of the Zimbra webmail classic user interface. An attacker can exploit this vulnerability via an email message containing a crafted calendar header, leading to the execution of arbitrary JavaScript code. | Required 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. | Due date: 2025-06-09 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P46#Security_Fixes ; https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P39#Security_Fixes ; https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.7#Security_Fixes ; https://nvd.nist.gov/vuln/detail/CVE-2024-27443"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-79"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "Zimbra Collaboration Suite (ZCS)", "due_date": "2025-06-09", "date_added": "2025-05-19", "vendorProject": "Synacor", "vulnerabilityName": "Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2024-27443", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-27443"}]}