| Assigner | GitHub_M |
| Reserved | 2024-04-16 |
| Published | 2024-04-25 |
| Updated | 2024-06-07 |
Description
changedetection.io is an open source web page change detection, website watcher, restock monitor and notification service. There is a Server Side Template Injection (SSTI) in Jinja2 that allows Remote Command Execution on the server host. Attackers can run any system command without any restriction and they could use a reverse shell. The impact is critical as the attacker can completely takeover the server machine. This can be reduced if changedetection is behind a login page, but this isn't required by the application (not by default and not enforced).
| CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Problem types
CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
Product status
References
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-4r7v-whpg-8rx3
https://github.com/dgtlmoon/changedetection.io/releases/tag/0.45.21
https://www.onsecurity.io/blog/server-side-template-injection-with-jinja2
