CVE-2021-37403
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 · uneditedOX App Suite before 7.10.3-rev32 and 7.10.4 before 7.10.4-rev18 allows XSS via a code snippet (user-generated content) when a sharing link is created and an App Loader relative URL is used.
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 confidenceOX App Suite before the specified revisions contains a cross-site scripting (XSS) vulnerability in the sharing link functionality. Attackers can inject malicious scripts via user-generated code snippets when creating sharing links, exploiting insufficient sanitization of App Loader relative URLs.
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= 7.10.3= 7.10.4CVSS 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 installed OX App Suite versionAccess the OX App Suite admin panel or run the appropriate version check command for your installation (typically via package manager or admin interface)Affected if The installed version is 7.10.3 or 7.10.4 (verify the specific revision number to confirm it is before the fixed revisions)
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Determine the exact revision numberCheck the package revision or build metadata associated with your OX App Suite installationAffected if The revision is earlier than 7.10.3-rev32 or 7.10.4-rev18 (these are the fixed versions)
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Verify sharing link feature is accessibleConfirm that the sharing link functionality is enabled and accessible to users in your OX App Suite deploymentAffected if The sharing link feature is active and users can create sharing links with custom parameters
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Inspect sharing link parametersIf you have access to your application's request logs or can test creating a sharing link, examine whether user-supplied code snippets can be included in the link parametersAffected if User-generated content or code snippets can be injected into sharing links without proper sanitization of App Loader relative URLs
Your environment is affected if OX App Suite version is 7.10.3 or 7.10.4 at a revision earlier than 7.10.3-rev32 or 7.10.4-rev18 AND the sharing link feature is enabled and accessible.
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 dataUpgrade OX App Suite to version 7.10.3-rev32 or 7.10.4-rev18 or later to resolve the XSS vulnerability in the sharing link feature.
- Consultation2.0 h
- Implementation4.0 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-2021-37403 — 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-2021-37403 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