#xss

### Impact Stored XSS vulnerabilities in Collections and Taxonomies allow authenticated users with content creation permissions to inject malicious JavaScript that executes when viewed by higher-privileged users. This affects: - Control panel users with permission to create or edit Collections and Taxonomies - Versions up to and including 5.22.0 The vulnerability can be exploited to: - Change a super admin's password (versions ≤ 5.21.0) - Change a super admin's email address to initiate password reset (version 5.22.0) - Gain unauthorized access to superadmin accounts The attack requires: - An authenticated user with control panel and content creation permissions - A super admin to view the compromised content ### Patches This has been fixed in 5.22.1. ### Credits Statamic thanks [Wojtek Chwala](https://github.com/wojtekchwala) for responsibly reporting the identified issues and working with us as we addressed them.

### Summary When using subrequest authentication, Anubis did not perform validation of the redirect URL and redirects user to any URL scheme. While most modern browsers do not allow a redirect to `javascript:` URLs, it could still trigger dangerous behavior in some cases. `GET https://example.com/.within.website/?redir=javascript:alert()` responds with `Location: javascript:alert()`. ### Impact Anybody with a subrequest authentication seems affected. Using `javascript:` URLs will probably be blocked by most modern browsers, but using custom protocols for third-party applications might still trigger dangerous operations. ### Note This was originally reported by @mbiesiad against Weblate.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal CivicTheme Design System allows Cross-Site Scripting (XSS). This issue affects CivicTheme Design System: from 0.0.0 before 1.12.0.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal JSON Field allows Cross-Site Scripting (XSS). This issue affects JSON Field: from 0.0.0 before 1.5.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Plausible tracking allows Cross-Site Scripting (XSS). This issue affects Plausible tracking: from 0.0.0 before 1.0.2.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Umami Analytics allows Cross-Site Scripting (XSS). This issue affects Umami Analytics: from 0.0.0 before 1.0.1.

### Summary The default HTML editor provider allows unauthenticated file uploads and images can overwrite existing files. ### Description An unauthenticated user can upload and replace existing files allowing defacing a website and combined with other issue, injection XSS payloads.

### Summary Sanitization of the content of uploaded SVG files was not covering all possible XSS scenarios. ### Details DNN validates the contents of SVG's to ensure they are valid and do not contain any malicious code. These checks were introduced as part of `CVE-2025-48378`. However, the checks to ensure there are no script elements within the SVG files are not comprehensive and may allow some malicious SVG files to be uploaded. As this vulnerability allows for the execution of arbitrary JavaScript code within the context of the user's browser, it can lead to a range of attacks, including data exfiltration, session hijacking, and defacement of the web application to name a few.

### Summary While setting up an oauth client, it was noticed that the callback page hosted by the client during the flow embeds user-controlled content without escaping or sanitizing it. This leads to a reflected Cross-Site-Scripting vulnerability. ### Details The affected code is located in *https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/client/oauth_callback.py*, which embeds all values passed to the `create_callback_html` function via the `message` parameter it into the callback page without escaping them. This can, for example, be abused by calling the callback server with an XSS payload inside the `error` GET parameter, the value of which will then be inserted into the callback page, causing the execution of attacker-controlled JavaScript code in the callback server's origin. Note that besides the `error` parameter, other parameters reaching this function are affected too. ### PoC 1. Setup a simple fastmcp client such as this one (the callback server's port was fixated ...

### Impact The `helpers.markdown_extract()` function did not perform sufficient sanitization of input data before wrapping in an HTML literal element. This helper is used to render user-provided data on dataset, resource, organization or group pages (plus any page provided by an extension that used that helper function), leading to a potential XSS vector. ### Patches This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4