CVE-2026-47693

What it is

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.

At a glance

Exploitability

Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data exposure.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-06-23 23:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-25 20:18 UTC Last updatedMost recent change to the record

Details

Published

2026-06-23 23:16 UTC

Last modified

2026-06-25 20:18 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-1236

Record status

Deferred

Attack profile CVSS 3.1 · 6.9

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None