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TI-2026-59043 Aliases CVE-2026-86257GHSA-pmr9-wpc3-f495

wger before 2.6 CSV Formula Injection via member export

Priority MEDIUM 55CWE-1236Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00277 20th percentileScored 2026-11-07
Fix Fixed wger (wger-project): 2.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wger-projectwgerbefore 2.62.6Patch availableCNA
  • wger Vendorwger-project Affected before 2.6 Fixed in 2.6 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:wger:wger:*:*:*:*:*:*:*:*——wger-project
  • cpe:2.3:a:wger:wger:*:*:*:*:*:*:*:* Versions — — ·wger-project

Remediation

  • Fix · CNA wger (wger-project) Fixed in 2.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    wger-project wger 2.6

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-59042 wger before 2.6 Open Redirect via trainer-login next parameterPriority MEDIUM 56
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86257
  2. 2026-10-03 Alias added: GHSA-pmr9-wpc3-f495

References

Advisory 1

  • TI-2026-32005 wger: cross-tenant password reset and plaintext disclosure via gym=None bypass CVSS 3.1CRITICAL 9.9
  • TI-2022-02450 Improper Restriction of Excessive Authentication Attempts in wger-project/wger CVSS 3.1CRITICAL 9.8
  • TI-2023-20093 Cross Site Request Forgery (CSRF) vulnerability in wger Project wger Workout Manager… CVSS 3.1HIGH 8.8
  • TI-2026-32021 wger IDOR: Authenticated Users Can Read Others' Private Workout Session Data via Template Routine API CVSS 3.1HIGH 7.5
  • TI-2026-32022 wger: Privilege escalation via trainer-login session chaining allows gym trainers to impersonate gym managers CVSS 3.1HIGH 8.1
  • TI-2026-29226 wger has Broken Access Control in the Global Gym Configuration Update Endpoint CVSS 3.1HIGH 7.6
See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences