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ApprainApplication

CVE-2025-41046

MEDIUM · 5.4 CVSS v3.1 Published 2025-09-04
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

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
A vulnerability has been discovered in appRain CMF version 4.0.5, consisting of a stored authenticated XSS due to a lack of proper validation of user input, through the 'data[Addon][layouts]' and 'data[Addon][layouts_except]' parameters in /apprain/developer/addons/update/960grid.

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 appRain CMF 4.0.5 where the 'data[Addon][layouts]' and 'data[Addon][layouts_except]' parameters in the /apprain/developer/addons/update/960grid endpoint do not properly validate or sanitize user input before rendering it back to the browser, allowing authenticated attackers to inject malicious JavaScript that persists on the server.

MitigationImplement proper input validation and output encoding for the affected parameters; use context-appropriate escaping (HTML encoding) when displaying addon layout values, and consider implementing a Content Security Policy to provide defense-in-depth against XSS attacks.

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
ApprainApplication
Affected:= 4.0.5

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
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/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 appRain CMF version
    Locate the version file or check the admin dashboard for the installed appRain version. Common paths include a version.php file in the root or the admin interface footer.
    Affected if The installed version is exactly 4.0.5 (older versions may have different vulnerabilities but are not affected by this specific CVE).
  2. Verify the addon developer endpoint exists
    Check if the /apprain/developer/addons/update/960grid endpoint is accessible on the web server. This can be done by attempting to access the URL directly or reviewing web server routing configuration.
    Affected if The endpoint exists and responds to requests (indicating the addon module is installed).
  3. Check authentication status for developer module
    Determine whether user accounts with access to the /apprain/developer/ path exist and are active. Review user roles and permissions in the admin panel or user configuration files.
    Affected if Authenticated users (especially those with developer or admin privileges) can access the addon update functionality where the vulnerable parameters are processed.
  4. Inspect stored addon layout values
    Examine the database or configuration files where addon layout values (layouts and layouts_except) are stored. Look for any unsanitized values that may contain script tags or event handlers.
    Affected if The data[Addon][layouts] or data[Addon][layouts_except] parameters are stored and rendered without proper HTML encoding, allowing persisted malicious scripts.

You are affected if appRain CMF 4.0.5 is installed, the developer addon module is accessible to authenticated users, and the layouts or layouts_except parameters can be stored and rendered without sanitization.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper input validation and output encoding for the affected parameters; use context-appropriate escaping (HTML encoding) when displaying addon layout values, and consider implementing a Content Security Policy to provide defense-in-depth against XSS attacks.

Fix this in Apprain Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
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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-2025-41046 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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