CVE-2026-47693

Poweradmin: CSV Injection in log export endpoints allows formula execution in spreadsheet applications

Published Jun 23, 2026 CVSS 3.1 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-3h6h-67x3-cv5x Poweradmin: CSV Injection in log export endpoints allows formula execution in spreadsheet applications
History
Type Values Removed Values Added
First Time appeared Poweradmin
Poweradmin poweradmin
Vendors & Products Poweradmin
Poweradmin poweradmin
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Poweradmin: CSV Injection in log export endpoints allows formula execution in spreadsheet applications
Weaknesses CWE-1236
References
Metrics cvssV3_1

{'score': 6.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 24, 2026, 2:46 PM
Reserved
May 19, 2026, 9:18 PM
Status
Deferred
Published
Jun 23, 2026, 11:16 PM
Modified
Jun 25, 2026, 8:18 PM