CVE-2023-37290
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 · uneditedInfoDoc Document On-line Submission and Approval System lacks sufficient restrictions on the available tags within its HTML to PDF conversion function, and allowing an unauthenticated attackers to load remote or local resources through HTML tags such as iframe. This vulnerability allows unauthenticated remote attackers to perform Server-Side Request Forgery (SSRF) attacks, gaining unauthorized access to arbitrary system files and uncovering the internal network topology.
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 confidenceInfoDoc Document On-line Submission and Approval System contains an SSRF vulnerability in its HTML-to-PDF conversion function due to insufficient restrictions on HTML tags. Unauthenticated attackers can inject malicious HTML tags such as iframe to force the server to make requests to internal resources, read local files, and map internal network topology.
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= 22547= 22567CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 the installed version of InfoDocLocate the InfoDoc application installation directory and check the version information, typically found in the application metadata, about page, or version file. This may be accessible via the application's admin interface or in the installation files.Affected if The installed version is 22547 or 22567
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Locate the HTML-to-PDF conversion functionAccess the InfoDoc web interface and identify any feature that converts HTML documents to PDF. This is often found in document submission, approval workflow, or report generation modules.Affected if The HTML-to-PDF conversion feature exists and is accessible to users
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Test for lack of input sanitizationSubmit an HTML document containing an iframe tag with a source pointing to an internal URL (e.g., http://localhost or http://internal-ip) through the PDF conversion function. Observe whether the server attempts to fetch the internal resource.Affected if The server makes requests to internal resources when processing the HTML input, indicating no sanitization is in place
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Check for existing HTML sanitizationExamine the server-side code or configuration related to the PDF conversion module. Look for any allowlist-based sanitization, Content Security Policy, or tag stripping mechanisms applied to HTML input before PDF generation.Affected if No sanitization is implemented or dangerous tags like iframe, img, link, script are not being stripped
You are affected if your InfoDoc version is 22547 or 22567 and the HTML-to-PDF conversion feature is enabled 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 dataImplement strict allowlist-based HTML sanitization in the PDF conversion module, disabling or stripping dangerous tags (iframe, img with src, link, script, etc.) and preventing loading of external/local resources.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-37290 — 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-2023-37290 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
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