Vulnerability · Published Jun 23, 2026 · Assigned by GitHub_M
CVE-2026-47693Poweradmin: CSV Injection in log export endpoints allows formula execution in spreadsheet applications
Medium 6.9
In plain English
A medium-severity security flaw in poweradmin from poweradmin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | poweradmin/poweradmin | 4.2.4 | GHSA-3h6h-67x3-cv5x |
| Packagist | poweradmin/poweradmin | 4.3.3 | GHSA-3h6h-67x3-cv5x |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| poweradmin | poweradmin | < 4.2.4>= 4.3.0, < 4.3.3 |
Weakness: CWE-1236 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
References
- https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3h6h-67x3-cv5x x_refsource_CONFIRM
- https://github.com/poweradmin/poweradmin/releases/tag/v4.2.4 x_refsource_MISC
- https://github.com/poweradmin/poweradmin/releases/tag/v4.3.3 x_refsource_MISC