CVE-2025-59115
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 · uneditedWindu CMS is vulnerable to Stored Cross-Site Scripting (XSS) in the logon page where input data has no proper validation. Malicious attacker can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting logs page by admin. Only version 4.1 was tested and confirmed as vulnerable. This issue was fixed in version 4.1 build 2250.
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 confidenceWindu CMS 4.1 contains a stored XSS vulnerability in the logon page where user input is not properly validated before storage. When an administrator visits the logs page, the injected malicious HTML/JavaScript payload is rendered and executed in the admin's browser session.
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= 4.1CVSS 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
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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 Windu CMS installationLook for Windu CMS files on the web server, typically in the web root directory. Check for the presence of typical Windu CMS file structures or index files.Affected if Windu CMS is installed on the server
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Check installed Windu CMS versionLocate the version file or header within the Windu CMS installation. Common locations include a version.php file, system info page, or admin dashboard about section. Compare the version number to 4.1.Affected if The installed version is exactly 4.1 (not patched to build 2250 or later)
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Verify logon page accessibilityAccess the logon page of the Windu CMS installation (typically /admin or /login). Determine if the application accepts user input in logon fields.Affected if The logon page is accessible and accepts user input without proper validation
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Confirm admin logs page existsNavigate to the administrator logs section within the admin panel. This is where the stored XSS payload would be rendered.Affected if The admin logs page is accessible and displays stored user input from the logon page
A user is affected if Windu CMS version 4.1 is installed and the logon page input is rendered on an accessible admin logs page without 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.
dbcve · scopedUpgrade to Windu CMS version 4.1 build 2250 or later which contains the patch. Additionally, implement proper input validation and output encoding to prevent XSS.
Windu CMS version 4.1 build 2250
- 1. Back up the current Windu CMS installation and database before proceeding with any upgrade.
- 2. Download Windu CMS version 4.1 build 2250 or later from the official source (windu.org).
- 3. Replace the existing installation files with the new version 4.1 build 2250 files.
- 4. Run any available database migration scripts if included with the update.
- 5. Clear any cached data in the application.
- 6. Verify the fix by attempting to submit XSS test payloads in the logon page and confirming they are properly sanitized or neutralized when viewed in the admin logs page.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-59115 — 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-2025-59115 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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