CVE-2025-1271
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 Anapi Group's h6web. This security flaw could allow an attacker to inject malicious JavaScript code into a URL. When a user accesses that URL, the injected code is executed in their browser, which can result in the theft of sensitive information, identity theft or the execution of unauthorised actions on behalf of the affected user.
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 Cross-Site Scripting (XSS) vulnerability in Anapi Group's h6web allows attackers to inject malicious JavaScript code into URLs. When users click on crafted links, the injected script executes in their browser context, enabling session hijacking, data theft, or actions performed on behalf of the user.
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 dataall versionsCVSS 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 h6web installationIdentify if Anapi H6web is running in your environment by checking for the web application process, service, or web interface accessible on your network. Look for the application's login page or API endpoints responding on typical web ports.Affected if Anapi H6web is present and accessible in your environment, as all versions are affected by this vulnerability.
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Identify URL-based input pointsReview the application's URL structure and identify parameters that accept user input. In a web browser or using a proxy tool, navigate through the h6web interface and observe which URL parameters are used (typically visible in the query string after the ? character).Affected if The application uses URL parameters to process user input, as reflected XSS requires user-supplied data to appear in the URL.
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Test for reflected input in responseCraft a test URL with a unique, identifiable string (such as your own test value) as a parameter value, then request that URL and examine the response page source. Look for whether your test string appears unmodified or unencoded in the HTML response.Affected if The test string is reflected back in the response without proper encoding, indicating the application does not sanitize output and may be vulnerable to reflected XSS.
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Verify context-sensitive encodingInspect the application's responses using browser developer tools or a text parser. Check whether special HTML characters (<, >, ", ', &) from your test input are converted to their HTML entities (such as <, >, ") or remain as literal characters.Affected if Special characters from user input appear as literal characters in the response rather than being encoded, confirming the XSS vulnerability exists.
Your environment is affected if Anapi H6web is running and URL parameters are reflected in responses without proper HTML encoding of special characters.
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 context-sensitive output encoding for all user-supplied input and deploy input validation with allowlists. Consider deploying Content Security Policy (CSP) headers as a defense-in-depth measure.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-1271 — 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-2025-1271 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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- Version or environment caveats, and links to real fixes
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