CVE-2025-52353
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 arbitrary code execution vulnerability in Badaso CMS 2.9.11. The Media Manager allows authenticated users to upload files containing embedded PHP code via the file-upload endpoint, bypassing content-type validation. When such a file is accessed via its URL, the server executes the PHP payload, enabling an attacker to run arbitrary system commands and achieve full compromise of the underlying host. This has been demonstrated by embedding a backdoor within a PDF and renaming it with a .php extension.
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 confidenceBadaso CMS 2.9.11 Media Manager allows authenticated users to upload files with embedded PHP code by renaming malicious files (e.g., PDF with PHP payload) to .php extension, bypassing content-type validation. When the uploaded file is accessed via URL, the web server executes the PHP payload, enabling arbitrary command execution on the host.
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= 2.9.11CVSS 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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Verify Badaso CMS versionCheck the installed Badaso version by inspecting the composer.json file, package.json, or the admin dashboard about/version page. Compare the version number to 2.9.11.Affected if The installed version is exactly 2.9.11.
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Confirm Media Manager module is enabledLog into the Badaso admin panel and navigate to the Media Manager section, or inspect the configuration file (typically in config/badaso or the database settings table) to verify if the media_manager module is enabled.Affected if Media Manager is accessible and enabled for authenticated users.
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Determine if upload directory is web-accessibleLocate the upload directory configuration in Badaso (commonly storage/uploads or public/uploads). Verify that this directory is served by the web server by checking the web server configuration and the actual file path relative to the web root.Affected if The upload directory is accessible via HTTP/HTTPS URLs.
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Check if PHP execution is allowed in upload directoryInspect the .htaccess file or nginx configuration for the upload directory, or test by attempting to access a harmless .php file in the upload directory via URL to see if it is executed rather than downloaded.Affected if PHP files in the upload directory are executed by the web server instead of being served as plain text or triggering a download.
You are affected if you are running Badaso 2.9.11 with Media Manager enabled and your upload directory is web-accessible with PHP execution permitted.
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 file upload validation using magic byte/header analysis instead of relying solely on content-type or file extension. Store uploaded files outside the web root or disable script execution in the upload directory. Consider implementing an allowlist of permitted file types.
- 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-2025-52353 — 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-2025-52353 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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