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Advisories

wger before 2.6 CSV Formula Injection via member export

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severity
medium
date
Affecting

  • wger >= 0, < 2.6

CWE
  • CWE-1236 Improper Neutralization of Formula Elements in a CSV File
CVSS
4.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Credit
whatisproblem
Description
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.

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