CVE-2026-86257wger before 2.6 CSV Formula Injection via member export
Updated under an hour ago ()
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It affects wger-project wger. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-1236
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
wger-project wger wger_project:wger (from the name) | before 2.6; 2.6 not affected | CNA record |
References
- https://github.com/wger-project/wger/security/advisories/GHSA-xq9m-hmp9-fw87vendor-advisory
- https://www.vulncheck.com/advisories/wger-before-2.6-csv-formula-injection-via-member-exportthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.