CVE-2026-47693

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.

• CWE-1236

• https://github.com/poweradmin/poweradmin/releases/tag/v4.2.4
• https://github.com/poweradmin/poweradmin/releases/tag/v4.3.3
• https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3h6h-67x3-cv5x
• https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3h6h-67x3-cv5x

Published

Jun 23, 2026

Last Modified

Jun 25, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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