CVE-2023-49487
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 · uneditedJFinalCMS v5.0.0 was discovered to contain a cross-site scripting (XSS) vulnerability in the navigation management department.
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 confidenceJFinalCMS v5.0.0 contains a stored cross-site scripting (XSS) vulnerability in the navigation management module. The vulnerability allows injection of malicious scripts through navigation parameters, which are then executed when other users access the affected navigation elements.
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= 5.0.0CVSS 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
- 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 JFinalCMS versionLocate the deployed JFinalCMS installation and check the version identifier in the codebase, configuration files, or application metadata (pom.xml, version file, or about page)Affected if The installed version is exactly 5.0.0
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Confirm navigation module is in useCheck if the navigation management feature is enabled and accessible within the application (typically found in admin panel under site management or navigation settings)Affected if The navigation management module is active and accessible to users
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Inspect navigation parameter storageExamine how navigation parameters (labels, URLs, titles) are stored in the database or configuration files. Look for any navigation entries in the application's database tables related to navigation menu itemsAffected if Navigation data exists and can be viewed by multiple users
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Verify output encoding is absentReview the navigation rendering code or templates to check if navigation parameters are output without proper encoding or sanitization when displayed to usersAffected if Navigation content is rendered without HTML encoding or sanitization of user-supplied values
You are affected if running JFinalCMS version 5.0.0 with the navigation module active and navigation parameters are rendered without proper 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 robust input validation and sanitization for all navigation-related parameters, combined with proper output encoding when rendering navigation content to prevent script execution.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-49487 — 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-2023-49487 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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