# CVE-2026-39416: AIL framework stored XSS in modal item preview

Source: https://junglewise.ai/threats/cve-2026-39416-ail-framework-stored-xss-in-modal-item-preview  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-08. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-39416 · Severity: medium · CVSS 6.1 · Published 2026-04-08

The AIL framework, a tool used for analyzing large amounts of unstructured data, contains a security flaw in how it previews certain items. If an attacker uploads a specially crafted file or data entry, they can execute malicious code in the browser of an authorized user who views that item. This could allow the attacker to perform actions on behalf of the user or access sensitive information within the analysis platform.

Technologies: [Ail-Project AIL framework](https://junglewise.ai/threats/technologies/ail-framework). Vendors: [Ail-Project](https://junglewise.ai/threats/vendors/ail-project).

## Quick answers

**Is CVE-2026-39416 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-39416 being exploited in the wild.

**How severe is CVE-2026-39416?** Medium severity, with a CVSS score of 6.1, published 8 April 2026.

**Which products and versions are affected?** Ail-Project AIL framework < 6.8.

**Is there a fix for CVE-2026-39416?** A patch was published on 2026-04-08: Fix released in version 6.8 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-39416 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-39416?** Check whether you run Ail-Project AIL framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stored cross-site scripting (XSS) vulnerability exists in the AIL framework's modal item preview functionality. The root cause is a failure to explicitly set a 'text/plain' content type when processing item content exceeding 800 characters, leading browsers to perform MIME-sniffing and execute the content as active HTML. An attacker with the ability to inject content into the framework can store malicious JavaScript that executes when an authenticated user views the crafted item's preview. This vulnerability is addressed in version 6.8.

## Affected products

- ail-project ail-framework < 6.8

## Timeline

- 2026-04-07: advisory: Initial advisory published by CIRCL/GitHub
- 2026-04-08: disclosed: CVE-2026-39416 published to NVD
- 2026-04-08: patched: Fix released in version 6.8

## References

- [https://github.com/ail-project/ail-framework/security/advisories/GHSA-fj6v-43r7-gcjm](https://github.com/ail-project/ail-framework/security/advisories/GHSA-fj6v-43r7-gcjm)
- [https://vulnerability.circl.lu/vuln/gcve-1-2026-0023](https://vulnerability.circl.lu/vuln/gcve-1-2026-0023)

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