CVE-2026-47693
Poweradmin: CSV Injection in log export endpoints allows formula execution in spreadsheet applications
Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 are vulnerable to CSV Injection (Formula Injection) in its log export functionality. User-controlled data — specifically the username field — is written to exported CSV files without sanitizing formula trigger characters (=, +, -, @). When an administrator exports activity logs and opens the resulting CSV in a spreadsheet application (Microsoft Excel, LibreOffice Calc, Google Sheets), any formula stored in a username is executed by the application. This can be used for phishing attacks against administrators or data exfiltration. Versions 4.2.4 and 4.3.3 patch the issue.
- Affected
- poweradmin
- CVSS v3.1 GITHUB
- 6.9 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N - EPSS
- 0.38% chance of exploitation in the next 30 days, 30th percentile
- Published
- 2026-06-23
- Updated
- 2026-06-24