CVE-2025-40626
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 AbanteCart v1.4.0, that could allow an attacker to execute JavaScript code in a victim's browser by sending the victim a malicious URL. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user, through "/about_us?[XSS_PAYLOAD]".
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 · moderate confidenceReflected XSS vulnerability in AbanteCart v1.4.0 where user-supplied input in the URL query parameter of the /about_us endpoint is not properly sanitized or encoded before being rendered in the HTML response, allowing injection of arbitrary JavaScript that executes in victim's browser when they visit the malicious URL.
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= 1.4.0CVSS 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 AbanteCart version is 1.4.0Check the version file in your installation, typically found in the main directory (e.g., version.php or within the admin dashboard under System > Settings > General).Affected if The installed version is exactly 1.4.0.
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Verify /about_us endpoint is accessibleNavigate to the /about_us page on your AbanteCart installation (commonly at /index.php?rt=content/content&content_id=about_us or similar URL structure).Affected if The page loads successfully and displays content.
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Identify if URL query parameters are reflected in the responseAppend a test parameter to the /about_us URL, for example: /about_us?test=alert(1) and inspect the page source or rendered HTML to see if the value appears unencoded.Affected if The query parameter value is rendered in the HTML output without proper encoding or sanitization.
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Inspect the application source for missing output encodingExamine the controller or template file responsible for the /about_us page (typically in core/lib or controller files) to verify whether htmlspecialchars or equivalent encoding is applied to URL parameters before output.Affected if The code does not apply output encoding (such as htmlspecialchars with ENT_QUOTES) to user-supplied URL parameters before rendering them in HTML.
You are affected if your AbanteCart installation is version 1.4.0 and the /about_us endpoint reflects URL query parameters in the HTML response without proper 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 proper input validation and output encoding for all user-supplied parameters before rendering in HTML; apply context-aware escaping based on where the data is inserted (HTML body, attribute, JavaScript, etc.). A WAF rule can serve as temporary mitigation.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-40626 — 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-2025-40626 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
- No spam, self-promotion, credentials, or personal data