CVE-2026-39416
Stored XSS in AIL Framework Modal Preview Allows Script Execution
Publication date: 2026-04-08
Last updated on: 2026-04-15
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| circl | ail_framework | to 6.7 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a stored cross-site scripting (XSS) issue found in the AIL framework before version 6.8. It occurs in the modal item preview functionality when processing item content longer than 800 characters. The problem arises because attacker-controlled content is returned without specifying a text/plain content type, causing the browser to interpret the response as active HTML. This allows an attacker to execute arbitrary JavaScript in the context of an authenticated user viewing the crafted item.
How can this vulnerability impact me? :
The vulnerability can lead to the execution of arbitrary JavaScript code within the browser of an authenticated user. This can result in unauthorized actions performed on behalf of the user, data theft, session hijacking, or other malicious activities that compromise the security and integrity of the user's session and data.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability is fixed in version 6.8 of the AIL framework. Immediate mitigation involves upgrading the AIL framework to version 6.8 or later.
Until the upgrade can be performed, avoid processing or viewing item content longer than 800 characters in the modal item preview functionality, as this is where the stored XSS vulnerability occurs.