Security advisory

{
  "id": "31eb16154c2cd190df1cf9183350d0fd7a45e66a4d6c713c12b3278ead0831c1",
  "url": "https://osv.dev/vulnerability/CVE-2025-27914",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-27914",
    "summary": "An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A Reflected Cross-Site Scripting (XSS) vulnerability exists in the /h/rest endpoint, allowing authenticated attackers to inject and execute arbitrary JavaScript in a victim's session. Exploitation requires a valid auth token and involves a crafted URL with manipulated query parameters that triggers XSS when accessed by a victim.",
    "evidence": "osv:CVE-2025-27914",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-27914",
      "aliases": [
        "CVE-2025-27914"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/zimbra/zm-build",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b6cd8f69d2761c014d4a3807f0bdee0011386444"
                },
                {
                  "last_affected": "52b539ef205db233bfd8116e8130e27735b4153c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.0.0-NA"
                      },
                      {
                        "last_affected": "9.0.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:zimbra:collaboration:10.1.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "10.1.0"
                      },
                      {
                        "last_affected": "10.1.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "10.1.0",
            "9.0.0-NA"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27914.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.890039694Z",
      "provider": "osv",
      "references": [
        "https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.11#Security_Fixes",
        "https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27914.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-27914"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27914.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-27914",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492583,
  "published_at": "2025-03-12T00:00:00+00:00"
}