CVE-2026-86257
wger before 2.6 CSV Formula Injection via member export
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
wger before 2.6 fails to sanitize first_name and last_name fields in the gym member TSV export endpoint, allowing any gym member to inject spreadsheet formulas. Attackers can inject formulas like =HYPERLINK to exfiltrate admin data or execute code when admins open the exported file in Excel or LibreOffice Calc.
| CWE | CWE-1236 |
| Vendor | wger-project |
| Product | wger |
| Published | Sep 6, 2026 |
| Last Updated | Sep 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
wger-project / wger
0 < 2.6
References
Credits
🔍 whatisproblem