CVE-2026-125388
Group-Office before 6.8.181, 25.0.116, and 26.0.58 Missing Authorization in Forms Report Download
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Intermesh Group-Office before 6.8.181, 25.0.116, and 26.0.58 contains a missing authorization vulnerability that allows authenticated users to download form reports via api/download.php without permission checks. Attackers can request the business/forms/report blob with a form ID to export every submission as an XLSX file, disclosing submissions they are not permitted to see.
| CWE | CWE-862 |
| Vendor | intermesh |
| Product | group-office |
| Published | Nov 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
Intermesh / Group-Office
0 < 6.8.181 25.0.0 < 25.0.116 26.0.0 < 26.0.58
References
github.com: https://github.com/Intermesh/groupoffice/security/advisories/GHSA-42qf-m3j9-837r github.com: https://github.com/Intermesh/groupoffice/blob/v26.0.57/www/api/download.php#L89-L129 vulncheck.com: https://www.vulncheck.com/advisories/group-office-before-6.8.181-25.0.116-and-26.0.58-missing-authorization-in-forms-report-download
Credits
leediay153 from Viettel Post