CVE-2026-86257

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-89246 WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a CSV… CWE-1236
• CVE-2026-9852 A CSV injection vulnerability exists in SYS600. CWE-1236
• CVE-2026-56652 Dool in versions up to 1.3.8 is vulnerable to a CSV injection vulnerability when… CWE-1236
• CVE-2026-19501 CSV export functionality in Brainstorm Force SureForms version, <= 2.12.1, fails to… CWE-1236
• CVE-2026-64955 When Microsoft Excel imports a CSV file, it executes cells beginning with certain… CWE-1236
• CVE-2026-47705 TypeBot is a chatbot builder tool. CWE-1236
• CVE-2026-18738 Shlink versions 5.0.0 through 5.1.5 contain a CSV formula injection vulnerability that… CWE-1236
• CVE-2026-65875 BaserCMS provided by baserCMS Users Community contains a CSV file injection vulnerability. CWE-1236