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Ail FrameworkApplication · Circl

CVE-2026-39416

MEDIUM · 6.1 CVSS v3.1 Published 2026-04-08
Fix available
A fix is available. Upgrade to after 6.7 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
AIL framework is an open-source platform to collect, crawl, process and analyse unstructured data. Prior to 6.8, a stored cross-site scripting (XSS) vulnerability was identified in the modal item preview functionality. When item content longer than 800 characters was processed, attacker-controlled content was returned without an explicit text/plain content type, allowing the browser to interpret the response as active HTML. This could result in execution of arbitrary JavaScript in the context of an authenticated user viewing a crafted item. This vulnerability is fixed in 6.8.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A stored cross-site scripting (XSS) vulnerability exists in AIL framework's modal item preview functionality. When processed item content exceeds 800 characters, the attacker-controlled content is returned without an explicit text/plain Content-Type header, causing browsers to interpret the response as active HTML. This allows execution of arbitrary JavaScript in the context of authenticated users viewing crafted items.

MitigationUpgrade to AIL framework version 6.8 or later, which implements proper Content-Type headers for the modal preview functionality to prevent HTML interpretation of long content.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Ail FrameworkApplication
Affected:<= 6.7

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm AIL Framework installation and version
    Identify the installed AIL Framework version by checking the application binaries, package metadata, or the web interface version display. Compare against the affected range: versions 6.7 and below are vulnerable.
    Affected if Installed version is 6.7 or lower
  2. Verify modal preview functionality is accessible
    Confirm the modal item preview feature is enabled and accessible within the AIL Framework web interface. This feature is required for the XSS to be exploitable.
    Affected if Preview functionality is available and accessible to authenticated users
  3. Check Content-Type header on preview endpoint for large content
    Send a request to the modal preview endpoint with content exceeding 800 characters and inspect the HTTP response Content-Type header. Capture the response using browser developer tools or a proxy like Burp/ZAP.
    Affected if Response lacks explicit text/plain Content-Type header, or header is missing/invalid for content > 800 characters
  4. Confirm response is interpreted as HTML
    With the same large content test, verify whether the browser renders the content as active HTML rather than plain text. Inject a benign test payload (e.g., <script>alert(1)</script>) in a non-production environment to confirm HTML execution.
    Affected if Browser interprets response as HTML and executes injected JavaScript

A user is affected if running AIL Framework version 6.7 or lower, the modal preview feature is accessible, and the preview endpoint returns content > 800 characters without a text/plain Content-Type header, allowing browsers to execute injected scripts.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 6.7
Interim mitigation

Upgrade to AIL framework version 6.8 or later, which implements proper Content-Type headers for the modal preview functionality to prevent HTML interpretation of long content.

Recommended fix High confidence

6.8

  1. 1. Back up the current AIL Framework installation and its data before proceeding with the upgrade
  2. 2. Upgrade AIL Framework to version 6.8 or later by following the project's upgrade instructions
  3. 3. Verify the upgrade was successful by checking the installed version
  4. 4. Test the modal item preview functionality with content longer than 800 characters to confirm the XSS vulnerability is remediated

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Ail Framework Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,570
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-39416 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data