CVE-2025-31286
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 · uneditedAn HTML injection vulnerability previously discovered in Trend Vision One could have allowed a malicious user to execute arbitrary code. Please note: this issue has already been addressed on the backend service and is no longer considered an active vulnerability.
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 confidenceHTML injection vulnerability in Trend Vision One that could have allowed a malicious user to execute arbitrary code through injected HTML/script 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 dataall versionsCVSS 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
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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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Confirm Trend Micro Vision One deploymentIdentify whether Trend Micro Vision One is installed in your environment by checking for the application process, service, or web interface accessAffected if The product is present and accessible in your environment
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Review backend service logs for injection attemptsExamine Trend Micro Vision One backend service logs for entries containing HTML tags (<script>, <iframe>, etc.) or unusual script content in request parametersAffected if Logs contain suspicious HTML/script content in user input fields that was not properly sanitized or neutralized
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Check for evidence of stored malicious contentSearch application databases or content storage for any persisted HTML or script tags that were injected and may indicate successful exploitationAffected if Stored content contains unsanitized HTML or script elements that could execute in other users' browsers
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Verify backend input sanitization is activeTest the application by submitting test input containing HTML characters (such as <test>) in user-facing fields and verify the response strips or encodes these charactersAffected if Submitted HTML characters are returned as-is in responses without encoding, indicating the vulnerability is still present
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Inspect web application firewall or proxy logsReview any WAF, reverse proxy, or network logging for blocked HTML injection attempts targeting Vision One endpointsAffected if Injection attempts were blocked or logged showing attempts to inject HTML/script into input fields
A user is affected if Trend Micro Vision One is running and input fields do not properly sanitize or encode HTML characters, allowing injected script content to execute.
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 · scopedSince the issue has already been addressed on the backend service, no active remediation is required; organizations should verify the patch is deployed and confirm their Trend Vision One instances are running the fixed version.
- No customer action required. Trend Micro has already addressed this vulnerability on the backend service.
- The vulnerability has been remediated server-side and is no longer considered active.
- If you continue to experience issues, contact Trend Micro support through success.trendmicro.com for confirmation.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-31286 — 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-2025-31286 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