CVE-2025-62211
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 · uneditedImproper neutralization of input during web page generation ('cross-site scripting') in Dynamics 365 Field Service (online) allows an authorized attacker to perform spoofing over a network.
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 · moderate confidenceCross-site scripting (XSS) vulnerability in Dynamics 365 Field Service (online) allows an authenticated attacker to inject malicious scripts into web pages viewed by other users, potentially enabling session hijacking and user impersonation (spoofing). The improper neutralization of input during web page generation indicates user-supplied data is not being properly sanitized before rendering in the browser.
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< 8.8.139.398CVSS 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
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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 checksWork through these to decide whether this CVE applies to you.
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Identify Dynamics 365 Field Service versionAccess the Dynamics 365 admin center or Power Platform admin center. Navigate to the Field Service application environment. Locate the version information typically found in the 'About' section or via the Dynamics 365 administration API endpoint that reports application version details.Affected if The installed version is lower than 8.8.139.398
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Verify web client access is enabledConfirm that the Dynamics 365 Field Service web client interface is accessible to users. Check user security roles to determine if standard users can access the Field Service web portal where field rendering occurs.Affected if Web client access is enabled and users can interact with Field Service forms containing user-supplied data fields
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Audit custom Field Service fieldsReview any custom fields added to Field Service entities (such as work orders, bookings, or assets) that accept user input. Examine the form designer to identify fields that may not have proper field-level security or that render user data in web pages.Affected if Custom fields that accept user input exist on Field Service forms without strict input validation configured
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Check for third-party integrationsExamine any integrated applications or plugins that feed data into Dynamics 365 Field Service. Identify integration points where external data is displayed in the Field Service web interface.Affected if Third-party integrations feed data into Field Service entities that render in the web client
The environment is affected if Dynamics 365 Field Service version is below 8.8.139.398 and users have access to the web interface where unsanitized user input can be rendered.
Generated from the published advisory. Verify against your own configuration.
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 · scoped8.8.139.398
Apply Microsoft's security update for Dynamics 365 Field Service when available; as an immediate compensating control, implement strict Content Security Policy (CSP) headers and validate that the vendor has implemented proper input validation and output encoding across all user-facing fields.
Dynamics 365 Field Service version 8.8.139.398 or later
- Contact Microsoft support or your Dynamics 365 administrator to verify your Field Service environment is updated to version 8.8.139.398 or later
- Confirm through the Dynamics 365 admin center that your Field Service application reflects version 8.8.139.398 or higher
- If your environment is still on an older version, request Microsoft to apply the latest updates for Dynamics 365 Field Service online
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 h
- Testing8.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-62211 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-62211 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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