CVE-2025-56590
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 issue was discovered in the InsertFromURL() function of the Apryse HTML2PDF SDK thru 11.10. This vulnerability could allow an attacker to execute arbitrary operating system commands on the local server.
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 InsertFromURL() function in Apryse HTML2PDF SDK versions up to 11.10 contains a command injection vulnerability allowing remote attackers to execute arbitrary operating system commands on the server by manipulating URL input passed to this function.
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= 11.5.0= 11.7.0= 11.10.0CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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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Identify Apryse HTML2PDF SDK installationSearch for Apryse or PDFTron SDK files in your application dependencies (check package.json, requirements.txt, pom.xml, or similar dependency files) and locate the html2pdf or pdftron library files in your project directoriesAffected if The Apryse HTML2PDF SDK or related PDFTron libraries are present in your environment
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Determine installed versionCheck your dependency manifest or the library's version file to identify the exact version of the Apryse Html2pdf SDK installedAffected if The installed version matches 11.5.0, 11.7.0, or 11.10.0 (or any version up to and including 11.10.0)
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Locate InsertFromURL() usageSearch your codebase for calls to InsertFromURL() function, particularly in files handling PDF conversion or HTML rendering workflowsAffected if Codebase contains active calls to InsertFromURL() function
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Inspect URL input handlingExamine how URLs are passed to InsertFromURL() - review the code path from user input (request parameters, API inputs, configuration files) to this function callAffected if Unsanitized or user-controllable URL parameters are passed directly to InsertFromURL() without validation
You are affected if Apryse HTML2PDF SDK versions 11.5.0, 11.7.0, or 11.10.0 are installed AND your application uses InsertFromURL() with external URL input.
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 to the patched version of the Apryse HTML2PDF SDK when available; until then, sanitize all URLs input to InsertFromURL(), restrict network access to the server, and run the PDF conversion service with minimal privileges in an isolated environment.
- 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-2025-56590 — 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-2025-56590 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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