#xss

### Impact A vulnerability has been identified in Steve where by default it was using an insecure option that did not validate the certificate presented by the remote server while performing a TLS connection. This could allow the execution of a man-in-the-middle (MitM) attack against services using Steve. For example, Rancher relies on Steve as a dependency for its user interface (UI) to proxy requests to Kubernetes clusters. Users who have the permission to create a service in Rancher’s local cluster can take over Rancher’s UI and display their own UI to gather sensitive information. This is only possible when the setting `ui-offline-preferred` is manually set to `remote` (by default Rancher sets it to `dynamic`). This enables further attacks such as cross-site scripting (XSS), or tampering the UI to collect passwords from other users etc. Please consult the associated [MITRE ATT&CK - Technique - Adversary-in-the-Middle](https://attack.mitre.org/techniques/T1557/) for further infor...

## Summary After some research, it turns out that it's possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values ​​of the data object passed to the HTML. Latest versions are impacted. ## Details The vulnerable header is `X-React-Router-Prerender-Data`, a specific JSON object must be passed to it in order for the spoofing to be successful as we will see shortly. Here is [the vulnerable code](https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/routes.ts#L87) : <img width="776" alt="Capture d’écran 2025-04-07 à 05 36 58" src="https://github.com/user-attachments/assets/c95b0b33-15ce-4d30-9f5e-b10525dd6ab4" /> To use the header, React-router must be used in Framework mode, and for the attack to be possible the target page must use a loader. ## Steps to reproduce Versions used for our PoC: - "@react-router/node": "^7.5.0", -...

Laravel Starter 11.11.0 is vulnerable to Cross Site Scripting (XSS) in the tags feature. Any user with the ability of create or modify tags can inject malicious JavaScript code in the name field.

### Impact The input parameter, which consists of a file path and name, can be manipulated to return the Content-Type header with text/html if the name part ends with .html. This could allow malicious JavaScript code to be executed in the browser. For a successful attack, a malicious file needs to be uploaded beforehand. The severity of the vulnerability is mitigated by the fact that the application UI and the JPA Web API are typically accessible only to authenticated users. ### Patches The problem has been fixed in CUBA JPA Web API add-on 1.1.1. ### Workarounds A workaround for those who are unable to upgrade: [Disable Files Endpoint in CUBA Application](https://docs.jmix.io/jmix/files-vulnerabilities.html#disable-files-endpoint-in-cuba-application). ### References [Files Functionality Vulnerabilities :: Jmix Documentation](https://docs.jmix.io/jmix/files-vulnerabilities.html) Similar vulnerability in Jmix: [XSS in the /files Endpoint of the Generic REST API · Advisory · jmix...

### Impact The input parameter, which consists of a file path and name, can be manipulated to return the Content-Type header with text/html if the name part ends with .html. This could allow malicious JavaScript code to be executed in the browser. For a successful attack, a malicious file needs to be uploaded beforehand. The severity of the vulnerability is mitigated by the fact that the application UI and the generic REST API are typically accessible only to authenticated users. ### Patches The problem has been fixed in CUBA REST API add-on 7.2.7. ### Workarounds A workaround for those who are unable to upgrade: [Disable Files Endpoint in CUBA Application](https://docs.jmix.io/jmix/files-vulnerabilities.html#disable-files-endpoint-in-cuba-application). ### References [Files Functionality Vulnerabilities :: Jmix Documentation](https://docs.jmix.io/jmix/files-vulnerabilities.html) Similar vulnerability in Jmix: [XSS in the /files Endpoint of the Generic REST API · Advisory · jm...

### Impact The input parameter, which consists of a file path and name, can be manipulated to return the Content-Type header with text/html if the name part ends with .html. This could allow malicious JavaScript code to be executed in the browser. For a successful attack, a malicious file needs to be uploaded beforehand. The severity of the vulnerability is mitigated by the fact that the application UI and the generic REST API are typically accessible only to authenticated users. Additionally, the /files endpoint in Jmix requires specific permissions and is disabled by default. ### Patches The problem has been fixed in Jmix 1.6.2+ and 2.4.0+. ### Workarounds A workaround for those who are unable to upgrade: [Disable Files Endpoint in Jmix Application](https://docs.jmix.io/jmix/files-vulnerabilities.html#disable-files-endpoint-in-jmix-application).

Cross Site Scripting vulnerability in Create/Modify article function in Alkacon OpenCMS 17.0 allows remote attacker to inject javascript payload via image title sub-field in the image field

A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the image parameter under the Create/Modify article function.

QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.

A vulnerability was found in songquanpeng one-api up to 0.6.10. It has been classified as problematic. This affects an unknown part of the component System Setting Handler. The manipulation of the argument Homepage Content leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.