CVE-2025-40729
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 · uneditedReflected Cross-Site Scripting (XSS) in /customer_support/index.php in Customer Support System v1.0, which allows remote attackers to execute arbitrary code via the page parameter.
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 confidenceReflected XSS vulnerability in Customer Support System v1.0 where the 'page' parameter in /customer_support/index.php is not properly sanitized, allowing attackers to inject malicious JavaScript that executes in victim browsers.
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= 1.0CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Confirm Customer Support System installationLocate the Oretnom23 Customer Support System installation directory and identify the exact version installed. Check for version files, about pages, or admin panels that display the software version.Affected if The installed version is exactly 1.0 (the only affected version per the CVE).
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Verify vulnerable file existsCheck for the presence of /customer_support/index.php in the web root or application directory.Affected if The file /customer_support/index.php exists on the system.
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Confirm page parameter is processedInspect the source code of /customer_support/index.php and locate where the 'page' parameter is handled. Search for $_GET['page'] or $_REQUEST['page'] usage.Affected if The code reads and uses the 'page' parameter without sanitization functions like htmlspecialchars, htmlentities, or strip_tags.
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Check for input sanitizationReview the code around the 'page' parameter usage to determine if any input validation or output encoding is performed before the value is echoed or used in the page output.Affected if No sanitization is applied to the 'page' parameter before it is reflected in the HTML output.
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Assess network accessibilityDetermine if the customer_support/index.php page is accessible over the network (internal or external). Check web server configuration and firewall rules.Affected if The vulnerable endpoint is reachable from a network where potential attackers could craft malicious links for victims to click.
You are affected if Oretnom23 Customer Support System v1.0 is installed, the file /customer_support/index.php exists, and the 'page' parameter is processed without sanitization allowing reflected input to appear in the page output.
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 proper input validation and output encoding for the page parameter. Use context-appropriate escaping and consider implementing a Content Security Policy (CSP) to mitigate XSS risks.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-40729 — 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-2025-40729 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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