CVE-2025-40733
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) vulnerability in Daily Expense Manager v1.0. This vulnerability allows an attacker to execute JavaScript code by sending a POST request through the username parameter in /login.php.
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 in Daily Expense Manager v1.0 allows injection of malicious JavaScript via the username parameter in the login.php form. The vulnerability is triggered when unsanitized user input is reflected back in the HTTP response without proper output encoding.
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.
-
Confirm Daily Expense Manager versionLocate and read version information in the application (check about page, readme file, or application header/footer) or check the source code metadataAffected if The installed version is 1.0 (specifically Code Projects Daily Expense Manager v1.0)
-
Verify login.php existsCheck if the file login.php exists in the web root or application directoryAffected if The login.php file is present in the deployed application
-
Inspect login.php for username reflectionOpen login.php and search for code that outputs the username parameter without sanitization (look for patterns like echo $_POST['username'] or similar without htmlspecialchars or encoding functions)Affected if The code reflects the username parameter directly in the response without output encoding
-
Check if login form is accessibleAccess the login page via HTTP/HTTPS to confirm it is reachable and returns the login formAffected if The login.php page is accessible and returns a response containing the username field
-
Test for XSS reflection (optional)Submit a benign XSS test payload (e.g., <script>alert(1)</script>) as the username and check if the payload is reflected unencoded in the responseAffected if The submitted payload appears in the response without being escaped or encoded
A user is affected if they have Code Projects Daily Expense Manager version 1.0 deployed with login.php accessible and the username parameter is reflected in the response without output encoding.
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 input validation and output encoding on the username parameter in login.php to prevent script execution. Use context-appropriate encoding when reflecting user input in HTML responses.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 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 $1,744.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-40733 — 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-2025-40733 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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