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CVE-2026-86257

CVE-2026-86257 · wger before 2.6 CSV Formula Injection via member export

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 4.8 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • wger

    Versions
    • ≥ 0, < 2.6: Affected (custom)
    • 2.6: Not affected (custom)

    Update to 2.6

  • wger PyPI

    Versions
    • 1.1
    • 1.1.1
    • 1.2
    • 1.2rc1
    • 1.3
    • 1.4
    • 1.5
    • 1.6
    • 1.6.1
    • 1.7
    • 1.8
    • 1.9
    • 2.0
    • 2.1
    Affected ranges
    • ECOSYSTEM: < 2.6

    Update to 2.6

Original sources

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