CVE-2026-47693

Medium

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.

SeverityMedium

CVSS6.9

Exploit probability—

ProductPoweradmin/poweradmin

PublishedJun 23, 2026

First seenJun 23, 2026

Weakness typeCWE-1236CWE-1236

How to fix

Update

poweradmin/poweradmin4.2.4, 4.3.3 or later

Affected products

Product	Affected versions	Fixed in
poweradmin/poweradminPackagist	v < 4.2.4, 4.3.0 ≤ v < 4.3.3	4.2.4, 4.3.3

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