CVE-2025-66376_CVE-2025-66376

7.2 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.

Basic Information

ID CVE-2025-66376

Source mitre

Published Jan 5, 2026 at 00:00

Modified Jan 5, 2026 at 14:49

Affected Product

Vendor Zimbra

Product Collaboration

Version 10.0

Affected Versions Zimbra Collaboration 10.0
Zimbra Collaboration 10.1

CWE Classification

CWE-79

References

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    "lastseen": "",
    "description": "Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.",
    "published": "2026-01-05T00:00:00.000Z",
    "modified": "2026-01-05T14:49:53.107Z",
    "type": "cve",
    "title": "CVE-2025-66376",
    "source": "mitre",
    "references": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories\nhttps://wiki.zimbra.com/wiki/Security_Center\nhttps://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy\nhttps://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.13#Security_Fixes\nhttps://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.18#Security_Fixes",
    "id": "CVE-2025-66376",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "Zimbra Collaboration 10.0\nZimbra Collaboration 10.1",
    "sourceHref": "",
    "cvss": {
        "score": 7.2,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Collaboration",
    "version": "10.0",
    "vendor": "Zimbra",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}