CVE-2026-45551

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Source
https://cve.org/CVERecord?id=CVE-2026-45551
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45551.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45551
Aliases
  • GHSA-9w92-p32g-g99p
Published
2026-05-29T12:34:22Z
Modified
2026-08-12T03:51:46Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Group-Office: Authenticated Stored XSS in Administrator Context via Arbitrary Cross-User Setting Write
Details

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any user_id via index.php?r=core/saveSetting. A separate client-side sink in the email module injects the email_font_size setting directly into JavaScript without escaping. By combining these two issues, any low-privileged authenticated user can overwrite an administrator's email_font_size setting with a JavaScript payload and trigger stored XSS in the administrator's browser when the GroupOffice web client loads views/Extjs3/modulescripts.php. This vulnerability is fixed in 26.0.25, 25.0.100, and 6.8.165.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-639",
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45551.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "25.0.1"
                },
                {
                    "fixed": "25.0.1005"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/intermesh/groupoffice

Affected ranges

Type
GIT
Repo
https://github.com/intermesh/groupoffice
Events
Introduced
3c64605e5d45b524915be331b2de97cd04858cb6
Fixed
a96e2bc3524c79fa595b59e3d0a819940a833a59
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
01515845fe2807c2394ef5f89fd2df2e61a68443
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "26.0.1"
        },
        {
            "fixed": "26.0.25"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.8.165"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v25.*
v25.0.10
v25.0.11
v25.0.12
v25.0.14
v25.0.15
v25.0.16
v25.0.20
v25.0.21
v25.0.22
v25.0.23
v25.0.25
v25.0.27
v25.0.28
v25.0.29
v25.0.30
v25.0.32
v25.0.34
v25.0.35
v25.0.36
v25.0.37
v25.0.38
v25.0.39
v25.0.40
v25.0.46
v25.0.47
v25.0.48
v25.0.49
v25.0.50
v25.0.51
v25.0.52
v25.0.53
v25.0.55
v25.0.56
v25.0.58
v25.0.59
v25.0.61
v25.0.62
v25.0.64
v25.0.66
v25.0.67
v25.0.68
v25.0.69
v25.0.70
v25.0.71
v25.0.72
v25.0.74
v25.0.9
v26.*
v26.0.13
v26.0.14
v26.0.15
v26.0.16
v26.0.17
v26.0.18
v26.0.19
v26.0.20
v26.0.21
v26.0.23
v26.0.24
v26.0.4
v26.0.5
v26.0.6
v26.0.7
v26.0.9
v6.*
v6.3.1
v6.3.10
v6.3.11
v6.3.12
v6.3.14
v6.3.3
v6.3.4
v6.3.5
v6.3.6
v6.3.7
v6.3.8
v6.4.23
v6.4.25
v6.4.26
v6.4.27
v6.4.28
v6.4.29
v6.4.30
v6.4.31
v6.4.32
v6.4.33
v6.4.34
v6.4.35
v6.4.36
v6.4.37
v6.4.38
v6.4.39
v6.4.40
v6.4.41
v6.4.42
v6.4.43
v6.4.44
v6.4.49
v6.4.50
v6.4.51
v6.5.30
v6.5.31
v6.5.32
v6.5.33
v6.5.34
v6.5.35
v6.5.36
v6.5.37
v6.5.38
v6.5.39
v6.5.41
v6.5.42
v6.5.43
v6.5.44
v6.5.45
v6.5.46
v6.5.47
v6.5.48
v6.5.49
v6.5.50
v6.5.51
v6.5.52
v6.5.53
v6.5.54
v6.5.55
v6.5.56
v6.5.57
v6.5.58
v6.5.59
v6.5.60
v6.5.61
v6.5.62
v6.5.63
v6.5.64
v6.5.65
v6.5.66
v6.5.67
v6.5.68
v6.5.69
v6.5.70
v6.5.71
v6.5.72
v6.5.73
v6.5.74
v6.5.75
v6.5.76
v6.5.77
v6.5.78
v6.5.79
v6.5.80
v6.5.81
v6.5.82
v6.5.84
v6.5.85
v6.5.86
v6.5.88
v6.5.89
v6.5.90
v6.5.91
v6.5.92
v6.5.93
v6.5.95
v6.5.96
v6.6.100
v6.6.102
v6.6.103
v6.6.104
v6.6.105
v6.6.106
v6.6.107
v6.6.110
v6.6.117
v6.6.118
v6.6.119
v6.6.124
v6.6.125
v6.6.126
v6.6.127
v6.6.128
v6.6.129
v6.6.130
v6.6.131
v6.6.132
v6.6.133
v6.6.134
v6.6.135
v6.6.136
v6.6.137
v6.6.138
v6.6.139
v6.6.140
v6.6.141
v6.6.143
v6.6.27
v6.6.28
v6.6.29
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.70
v6.6.71
v6.6.72
v6.6.81
v6.6.82
v6.6.83
v6.6.84
v6.6.85
v6.6.86
v6.6.87
v6.6.88
v6.6.89
v6.6.90
v6.6.91
v6.6.92
v6.6.93
v6.6.94
v6.6.95
v6.6.96
v6.6.97
v6.6.98
v6.6.99
v6.7.10
v6.7.11
v6.7.12
v6.7.13
v6.7.14
v6.7.15
v6.7.17
v6.7.19
v6.7.20
v6.7.22
v6.7.24
v6.7.25
v6.7.26
v6.7.27
v6.7.28
v6.7.29
v6.7.30
v6.7.31
v6.7.32
v6.7.33
v6.7.35
v6.7.36
v6.7.37
v6.7.38
v6.7.39
v6.7.40
v6.7.41
v6.7.42
v6.7.43
v6.7.44
v6.7.8
v6.7.9
v6.8.10
v6.8.100
v6.8.101
v6.8.102
v6.8.104
v6.8.105
v6.8.106
v6.8.107
v6.8.109
v6.8.11
v6.8.114
v6.8.116
v6.8.117
v6.8.118
v6.8.12
v6.8.120
v6.8.121
v6.8.122
v6.8.123
v6.8.124
v6.8.125
v6.8.126
v6.8.127
v6.8.128
v6.8.129
v6.8.130
v6.8.131
v6.8.132
v6.8.133
v6.8.134
v6.8.135
v6.8.139
v6.8.14
v6.8.141
v6.8.142
v6.8.146
v6.8.147
v6.8.15
v6.8.150
v6.8.151
v6.8.152
v6.8.153
v6.8.154
v6.8.155
v6.8.157
v6.8.158
v6.8.159
v6.8.16
v6.8.161
v6.8.162
v6.8.163
v6.8.164
v6.8.17
v6.8.18
v6.8.19
v6.8.21
v6.8.23
v6.8.24
v6.8.25
v6.8.26
v6.8.28
v6.8.29
v6.8.30
v6.8.31
v6.8.32
v6.8.33
v6.8.34
v6.8.35
v6.8.37
v6.8.38
v6.8.39
v6.8.40
v6.8.41
v6.8.42
v6.8.43
v6.8.44
v6.8.45
v6.8.47
v6.8.49
v6.8.50
v6.8.54
v6.8.56
v6.8.57
v6.8.58
v6.8.59
v6.8.6
v6.8.60
v6.8.61
v6.8.62
v6.8.63
v6.8.64
v6.8.66
v6.8.69
v6.8.7
v6.8.70
v6.8.73
v6.8.76
v6.8.77
v6.8.79
v6.8.83
v6.8.84
v6.8.85
v6.8.87
v6.8.88
v6.8.9
v6.8.90
v6.8.93
v6.8.94
v6.8.95
v6.8.96
v6.8.97
v6.8.98

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45551.json"