Package Instance

Trix allows Cross-site Scripting via `javascript:` url in a link
The Trix editor, versions prior to 2.1.11, is vulnerable to XSS when pasting malicious code in the link field.

### Impact

An attacker could trick the user to copy&paste a malicious `javascript:` URL as a link that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.

See https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8

### Patches

Update Recommendation: Users should upgrade to Trix editor version 2.1.12 or later.

### Workarounds

This is not really a workaround but something that should be considered in addition to upgrading to the patched version. If affected users can disallow browsers that don't support a Content Security Policy, then this would be an effective workaround for this and all XSS vulnerabilities. Set CSP policies such as script-src 'self' to ensure that only scripts hosted on the same origin are executed, and explicitly prohibit inline scripts using script-src-elem.

### References

https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8

### Credits

This vulnerability was reported by Hackerone researcher https://hackerone.com/lio346?type=user

Trix vulnerable to Cross-site Scripting on copy & paste
### Impact
The Trix editor, in versions prior to 2.1.15, is vulnerable to XSS attacks when pasting malicious code.

An attacker could trick a user to copy and paste malicious code that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.

### Patches
Update Recommendation: Users should upgrade to Trix editor version 2.1.15 or later.

### References
The XSS vulnerability was reported by HackerOne researcher [hiumee](https://hackerone.com/hiumee?type=user).

Trix has a Stored XSS vulnerability through serialized attributes
### Impact
The Trix editor, in versions prior to 2.1.17, is vulnerable to XSS attacks when a `data-trix-serialized-attributes` attribute bypasses the DOMPurify sanitizer.

An attacker could craft HTML containing a `data-trix-serialized-attributes` attribute with a malicious payload that, when the content is rendered, could execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.

### Patches
Update Recommendation: Users should upgrade to Trix editor version 2.1.17 or later.

### References
The XSS vulnerability was responsibly reported by Hackerone researcher [newbiefromcoma](https://hackerone.com/newbiefromcoma).

Trix has a stored XSS vulnerability through its attachment attribute
The Trix editor, in versions prior to 2.1.16, is vulnerable to XSS attacks through attachment payloads.

An attacker could inject malicious code into a data-trix-attachment attribute that, when rendered as HTML and clicked on, could execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.