Organizr Cross-site Scripting

Cross-site Scripting (XSS) - Stored in GitHub repository causefx/organizr prior to 2.1.2200. (2022-05-27, CVE-2022-1909)

Stored XSS in the "Username" & "Email" input fields leads to account takeover of Admin & Co-admin users in GitHub repository causefx/organizr prior to 2.1.1810. Account takeover and privilege escalation (2022-04-13, CVE-2022-1347)

Multiple Stored XSS in GitHub repository causefx/organizr prior to 2.1.1810. This allows attackers to execute malicious scripts in the user's browser and it can lead to session hijacking, sensitive data exposure, and worse. (2022-04-13, CVE-2022-1346)

Stored XSS due to no sanitization in the filename in GitHub repository causefx/organizr prior to 2.1.1810. This allows attackers to execute malicious scripts in the user's browser and it can lead to session hijacking, sensitive data exposure, and worse. (2022-04-13, CVE-2022-1344)

Cross site scripting is an attack where a web page executes code that is injected by an adversary. It usually appears, when users input is presented. This attack can be used to impersonate a user, take over control of the session, or even steal API keys.

The attack can be executed e.g. when you application injects the request parameter directly into the HTML code of the page returned to the user:

https://server.com/confirmation?message=Transaction+Complete

what results in:

<span>Confirmation: Transaction Complete</span>

In that case the message can be modified to become a valid Javascript code, e.g.:

https://server.com/confirmation?message=<script>dangerous javascript code here</script>

and it will be executed locally by the user's browser with full access to the user's personal application/browser data:

<span>Confirmation: <script>dangerous javascript code here</script></span>