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SIP Sustainable Irrigation Platform 5.x CSRF Disable Passphrase Authorization

High
Advisory ID
ZSL-2026-5995
Release Date
14 July 2026
Affected Version
5.2.16
Tested On
Debian GNU/Linux 11 (bullseye) raspberrypi 6.1.21+ (armv6l/aarch64), Python 3.9.2
Summary

SIP is a free Raspberry Pi based Python program for controlling irrigation systems (sprinkler, drip, hydroponic, etc). It uses web technology to provide an intuitive user interface (UI) in several languages. The UI can be accessed in your favorite browser on desktop, laptop, and mobile devices. SIP has also been used to control pumps, lights, and other Irrigation related equipment.

Description

The application performs state-changing actions through HTTP GET requests without including any anti-CSRF token or validating the request origin. This can be exploited to perform administrative actions such as disabling the passphrase, rebooting the device, deleting programs or installing plugins if a logged-in administrator is lured into visiting a malicious web page. When the optional passphrase is not enabled (factory default) these actions are additionally available to any unauthenticated user, and where the passphrase is enabled it defaults to 'opendoor'.

Proof of Concept
Disclosure Timeline
24.06.2026Vulnerability discovered.
05.07.2026Contact with the vendor.
06.07.2026Vendor responds asking more details.
06.07.2026Sent details to the vendor.
09.07.2026Vendor will be working to address the issues.
14.07.2026Public security advisory released.
Credits
Vulnerability discovered by Anja Ivanovska
References
Changelog
14.07.2026Initial release