CVE-2020-24416
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 · uneditedMarketo Sales Insight plugin version 1.4355 (and earlier) is affected by a blind stored Cross-Site Scripting (XSS) vulnerability that could be abused by an attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.
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 confidenceThe Marketo Sales Insight plugin versions 1.4355 and earlier contain a blind stored XSS vulnerability in form fields. Attackers can inject malicious JavaScript that executes when victims browse pages containing the compromised fields.
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<= 1.4355CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify Marketo Sales Insight plugin versionLocate the Marketo Sales Insight plugin in your CMS or plugin management interface and note the installed version number. Compare this to the affected version range: 1.4355 and earlier.Affected if The installed version is 1.4355 or any earlier version.
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Verify form fields from the plugin are in useInspect your website or application for any form fields or input elements that originate from the Marketo Sales Insight plugin, such as lead capture forms, tracking fields, or inline forms.Affected if Form fields from the Marketo Sales Insight plugin are present and accessible to users.
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Confirm plugin is active and loadedCheck that the Marketo Sales Insight plugin is enabled and loading on your pages. This can be done by viewing page source or using browser developer tools to look for Marketo-related script includes or form markup.Affected if The plugin is actively loaded and serving form functionality to visitors.
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Inspect form input handlingReview the form field configuration in the Marketo Sales Insight settings or examine how user input is processed when forms are submitted. Look for whether input validation or encoding is applied server-side.Affected if No server-side input validation or output encoding is configured for the form fields.
A user is affected if the Marketo Sales Insight plugin version is 1.4355 or earlier and form fields from the plugin are actively rendered on pages without proper input sanitization.
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.
From vendor dataUpdate the Marketo Sales Insight plugin to a version newer than 1.4355. If no update is available, implement server-side input validation and output encoding on form fields to prevent script injection.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-24416 — 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-2020-24416 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