CVE-2025-66376

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Source
https://cve.org/CVERecord?id=CVE-2025-66376
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66376.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-66376
Published
2026-01-05T00:00:00Z
Modified
2026-07-15T01:48:49.811131825Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66376.json",
    "cwe_ids": [
        "CWE-79"
    ],
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "10.0"
                },
                {
                    "fixed": "10.0.18"
                },
                {
                    "introduced": "10.1"
                },
                {
                    "fixed": "10.1.13"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "10.0"
                },
                {
                    "fixed": "10.0.18"
                },
                {
                    "introduced": "10.1"
                },
                {
                    "fixed": "10.1.13"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "10"
                },
                {
                    "fixed": "10.0.18"
                },
                {
                    "introduced": "10.1"
                },
                {
                    "fixed": "10.1.13"
                }
            ]
        }
    ]
}
References

Affected packages

Git
github.com/zimbra/zm-build

Affected ranges

Type
GIT
Repo
https://github.com/zimbra/zm-build
Events
Introduced
b68c7b31a1d94f94903a79c53f1bd316b792de1d
Fixed
c2fac09a3333bcb767866afa3203541da2e8729c
Introduced
52b539ef205db233bfd8116e8130e27735b4153c
Fixed
1884e94c76d9602c75dff36c9ff9a5ec2224c582
Database specific 
{
    "cpe": "cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "10.0.0"
        },
        {
            "fixed": "10.0.18"
        },
        {
            "introduced": "10.1.0"
        },
        {
            "fixed": "10.1.13"
        }
    ]
}

Affected versions

10.*
10.0.0-GA
10.0.1
10.0.13
10.0.16
10.0.4
10.0.5
10.0.6
10.0.9
10.1.0
10.1.1
10.1.10
10.1.4
10.1.5
10.1.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66376.json"
github.com/zimbra/zm-mailbox

Affected ranges

Type
GIT
Repo
https://github.com/zimbra/zm-mailbox
Events
Introduced
8033bd1ec9d7211c2eb5fa71aeb3b4073a8dc160
Fixed
6f001741160336733794f909939fcb0b9e59f107
Introduced
de2f187263204c5edbcd64ab4aad155367f27eef
Fixed
2aecfa967aa09146bbab421bd09c242a420fff0e
Database specific 
{
    "cpe": "cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "10.0.0"
        },
        {
            "fixed": "10.0.18"
        },
        {
            "introduced": "10.1.0"
        },
        {
            "fixed": "10.1.13"
        }
    ]
}

Affected versions

10.*
10.0.0-GA
10.0.1
10.0.11
10.0.12
10.0.13
10.0.16
10.0.2
10.0.5
10.0.6
10.0.7
10.0.8
10.0.9
10.1.0
10.1.1
10.1.10
10.1.2
10.1.3
10.1.4
10.1.5
10.1.6
10.1.7
10.1.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66376.json"
github.com/zimbra/zm-zcs

Affected ranges

Type
GIT
Repo
https://github.com/zimbra/zm-zcs
Events
Introduced
5a574c4741e2713147c61524e30057679ece2ec6
Fixed
035c4371687d035685fd572d03a55e6cabf2383c
Database specific 
{
    "cpe": "cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "10.1.0"
        },
        {
            "fixed": "10.1.13"
        }
    ]
}

Affected versions

10.*
10.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66376.json"
github.com/zimbra/zm-zcs-lib

Affected ranges

Type
GIT
Repo
https://github.com/zimbra/zm-zcs-lib
Events
Introduced
e94be3228495cb215d7bb70d6ae24bc8a42cc01f
Fixed
f84684c7abd7ba2681e64499bf54719c764565e1
Introduced
0da199c818c28750b27aec8c2aa1fa8420086d4e
Fixed
42bcab6250f9084ac05d771550755f9401403f65
Database specific 
{
    "cpe": "cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "10.0.0"
        },
        {
            "fixed": "10.0.18"
        },
        {
            "introduced": "10.1.0"
        },
        {
            "fixed": "10.1.13"
        }
    ]
}

Affected versions

10.*
10.0.0-GA
10.0.1
10.0.12
10.0.9
10.1.0
10.1.1
10.1.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66376.json"