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Unrestricted File UploadWeakness · CWE-434

CVE-2026-61524

HIGH · 7.2 CVSS v3.1 Published 2026-08-03
No fix yet
No fix has been published. The vendor has not shipped a fixed release or patch. You remain exposed.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click 2 weeks old

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 · unedited
WebsiteBaker CMS before 2.13.10 contains an unrestricted file upload vulnerability in the module installation feature that allows authenticated administrators to achieve remote code execution by uploading a crafted ZIP archive containing a PHP webshell alongside a valid info.php metadata file. Attackers can place the malicious archive through the module installation interface, causing the application to extract the webshell into a web-accessible modules/ subdirectory where it becomes immediately executable by any unauthenticated user via direct HTTP request.

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
How this class of weakness works · CWE-434

The application accepts uploaded files without properly checking their type or content, so an attacker can upload something executable. If it lands where the server will run it, that is remote code execution. Remediating it means validating content rather than just the extension, storing uploads outside the web root, and never executing them.

General guidance for the unrestricted file upload class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

dbcve · scoped
Recommended fix Moderate confidence

WebsiteBaker CMS 2.13.10

  1. Create a complete backup of the WebsiteBaker CMS database and all files, including the /modules directory
  2. Place the site in maintenance mode or take it offline to prevent user access during upgrade
  3. Download WebsiteBaker CMS version 2.13.10 from the official WebsiteBaker repository or the addon.websitebaker.org website
  4. Extract the version 2.13.10 package and replace the existing core files, ensuring the /wb folder and configuration files are preserved
  5. Upload the new files, overwriting the existing installation while retaining custom configuration in /pages and /media directories
  6. After uploading, navigate to the admin panel and run any available database upgrade scripts or migration tools
  7. Verify the upgrade was successful by checking the admin dashboard shows version 2.13.10
  8. Manually inspect the /modules directory to ensure no unauthorized files remain from the vulnerability
Caveat Standard minor version security update with no expected breaking changes; always test backups before production deployment

Generated from the published advisory — verify against the referenced sources before acting.

No vendor fix exists The vendor has not published a patch for this.

There is no version to upgrade to and no patch to apply. Every affected install stays exposed until the vendor ships a fix — or somebody else builds one.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-61524 in production — separate from our analysis above.

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What this is

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