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ApprainApplication

CVE-2025-41042

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[Option][message]', 'data[Option][subject]' and 'data[Option][templatetype]' parameters in /apprain/information/manage/emailtemplate/add.

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

Stored authenticated XSS vulnerability in appRain CMF 4.0.5 allows attackers with valid credentials to inject malicious JavaScript through the email template management form. The affected parameters 'data[Option][message]', 'data[Option][subject]', and 'data[Option][templatetype]' in /apprain/information/manage/emailtemplate/add lack proper input validation, causing the payload to be stored in the database and executed when other users view the email templates.

MitigationImplement robust input validation and output encoding: sanitize all user inputs in the affected parameters using appropriate HTML entity encoding before database storage, and apply context-aware output encoding when rendering these fields in views. Consider implementing a Content Security Policy as defense-in-depth.

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. Identify appRain CMF version
    Locate the version file or admin panel about section to confirm the installed version is 4.0.5
    Affected if Installed version equals 4.0.5
  2. Verify email template feature access
    Confirm you have authenticated access to the admin panel and navigate to the email template management interface at /apprain/information/manage/emailtemplate/add
    Affected if You can access the email template management form with valid administrator credentials
  3. Inspect database for unencoded template content
    Query the database table storing email templates (typically named 'emailtemplate' or similar) and examine the 'subject', 'message', and 'templatetype' fields for raw HTML or script tags without entity encoding
    Affected if Database records contain unescaped HTML tags in subject, message, or templatetype fields
  4. Check application code for input validation
    Examine the controller handling /apprain/information/manage/emailtemplate/add for sanitization functions applied to data[Option][message], data[Option][subject], and data[Option][templatetype] parameters
    Affected if No HTML entity encoding or input sanitization is applied to these parameters before database storage
  5. Test for stored XSS execution
    Create a test email template with a benign XSS payload in one of the affected fields (such as <script>alert('XSS')</script>) and then view the template as a different user session
    Affected if The alert executes when viewing the email template, confirming stored XSS vulnerability

You are affected if running appRain CMF version 4.0.5, the email template management feature is accessible to your user account, and the application fails to encode input in the subject, message, or templatetype fields before storage or display.

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 robust input validation and output encoding: sanitize all user inputs in the affected parameters using appropriate HTML entity encoding before database storage, and apply context-aware output encoding when rendering these fields in views. Consider implementing a Content Security Policy as defense-in-depth.

Fix this in Apprain Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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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-2025-41042 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data