CVE-2025-13827
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 · uneditedSummary Arbitrary files can be uploaded via the GrapesJS Builder, as the types of files that can be uploaded are not restricted. ImpactIf the media folder is not restricted from running files this can lead to a remote code execution.
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 confidenceGrapesJS Builder lacks proper file type validation on its file upload functionality, allowing attackers to upload arbitrary file types to the media folder. When the media folder is accessible and executable by the web server, this enables remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Authentication
- X
- User interaction
- A
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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 GrapesJS Builder installationSearch your codebase for 'grapesjs' package in node_modules, package.json, or included JavaScript files. Check for the presence of the GrapesJS library in frontend dependencies.Affected if GrapesJS Builder is not present in your environment
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Determine the installed GrapesJS versionRun 'npm list grapesjs' or check package.json for the grapesjs version number. Compare against any known vulnerable version ranges provided by your vendor.Affected if The installed version falls within a vulnerable range and no compensating controls are in place
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Locate the media folder configurationSearch your GrapesJS configuration for 'mediaFolder', 'uploadDir', or similar settings that define where uploaded files are stored. Check the project's configuration files and the GrapesJS initialization code.Affected if A media folder path is configured and accessible via the web server
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Verify if file upload is enabledSearch the GrapesJS configuration for 'uploadEnabled', 'fileUpload', or the blocks/panels configuration that enable the file manager or asset manager. Check if the upload feature is exposed in the UI.Affected if The file upload functionality is active in the GrapesJS Builder UI
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Check web server script execution in upload directoryInspect your web server configuration (Apache .htaccess, Nginx config, or equivalent) for the media folder path. Look for 'AllowOverride', 'location' blocks, or directives that permit or deny script execution (e.g., 'SetHandler', 'Options -ExecCGI').Affected if The media folder allows execution of uploaded scripts (e.g., .php, .js, .exe files)
You are affected if GrapesJS Builder with an enabled file upload feature is in use, the media folder is web-accessible, and the web server permits script execution within that directory.
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 a strict allowlist of permitted file types (e.g., images, documents) and configure the web server to disable script execution in the upload directory.
- 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-2025-13827 — 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-2025-13827 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
- No spam, self-promotion, credentials, or personal data