{
  "version": "https://jsonfeed.org/version/1.1",
  "title": "Synacor Zimbra Collaboration Suite (ZCS): Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability · updates",
  "home_page_url": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915",
  "feed_url": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915/feed.json",
  "description": "Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that exists in the Classic Web Client due to insufficient sanitization of HTML content in ICS files. When a user views an e-mail message containing a malicious ICS entry, its embedded JavaScript executes via an ontoggle event inside a tag. This allows an attacker to run arbitrary JavaScript within the victim's session, potentially leading to unauthorized actions such as setting e-mail filters to redirect messages to an attacker-controlled address. As a result, an attacker can perform unauthorized actions on the victim's account, including e-mail redirection and data exfiltration. Added to CISA KEV on 2025-10-07.",
  "language": "en",
  "_pwn": {
    "slug": "synacor-zimbra-collaboration-suite-zcs-cve-2025-27915",
    "severity": "medium",
    "status": "closed",
    "patchStatus": "patched",
    "rss": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915/feed.xml",
    "llms": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915/llms.txt",
    "json": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915.json"
  },
  "items": [
    {
      "id": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915#2025-10-07-e2ec6eb3",
      "url": "https://pwn.watch/i/synacor-zimbra-collaboration-suite-zcs-cve-2025-27915#2025-10-07-e2ec6eb3",
      "title": "Synacor Zimbra Collaboration Suite (ZCS): Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability: CISA added CVE-2025-27915 to the KEV catalog (due 2025-10-28).",
      "content_text": "Synacor Zimbra Collaboration Suite (ZCS): Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability: CISA added CVE-2025-27915 to the KEV catalog (due 2025-10-28).",
      "date_published": "2025-10-07T00:00:00.000Z",
      "tags": [
        "medium"
      ]
    }
  ]
}