Novel PlusApplication · Xxyopen

CVE-2024-24021

CRITICAL · 9.8 CVSS v3.1 Published 2024-02-08
Fix available
A fix is available. Upgrade to after 4.2.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
A SQL injection vulnerability exists in Novel-Plus v4.3.0-RC1 and prior. An attacker can pass specially crafted offset, limit, and sort parameters to perform SQL injection via /novel/userFeedback/list.

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 confidence

SQL injection vulnerability in Novel-Plus v4.3.0-RC1 allows unauthenticated attackers to inject malicious SQL code via the offset, limit, and sort parameters at the /novel/userFeedback/list endpoint. User-supplied input is directly concatenated into SQL queries without proper parameterization or sanitization.

MitigationUpgrade to a patched version of Novel-Plus. Alternatively, implement prepared statements/parameterized queries for all database operations in the affected endpoint, or deploy a WAF to block SQL injection payloads until patching is possible.

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
Novel PlusApplication
Affected:<= 4.2.0= 4.3.0

CVSS 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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Novel-Plus version
    Locate the version file or check the application metadata (such as pom.xml, version.properties, or the admin panel about page) to determine the running version of Novel-Plus
    Affected if The installed version is 4.3.0 or any version <= 4.2.0 (including 4.3.0-RC1)
  2. Verify endpoint accessibility
    Confirm that the /novel/userFeedback/list endpoint is exposed and accessible in your deployment (check your web server routing and application firewall rules)
    Affected if The endpoint is publicly or internally accessible without additional authentication layers beyond what the application provides
  3. Test offset parameter for SQL injection
    Send a crafted request to /novel/userFeedback/list with a malicious SQL payload in the offset parameter (for example: offset=1 AND 1=1--) and observe the database response or any SQL errors
    Affected if The application returns unexpected database results, SQL syntax errors, or exhibits behavior indicating the input is executed as SQL code
  4. Test limit parameter for SQL injection
    Send a crafted request to /novel/userFeedback/list with a malicious SQL payload in the limit parameter (for example: limit=1 UNION SELECT--) and observe the database response
    Affected if The application executes the injected SQL or returns data outside the intended scope
  5. Test sort parameter for SQL injection
    Send a crafted request to /novel/userFeedback/list with a malicious SQL payload in the sort parameter (for example: sort=id; DROP TABLE--) and observe the database response
    Affected if The sort parameter input is processed as raw SQL or causes unintended database operations

Your environment is affected if you are running Novel-Plus version 4.3.0 or any version <= 4.2.0 AND the /novel/userFeedback/list endpoint is accessible without proper input sanitization or prepared statements being applied to the offset, limit, or sort parameters.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 4.2.0
Interim mitigation

Upgrade to a patched version of Novel-Plus. Alternatively, implement prepared statements/parameterized queries for all database operations in the affected endpoint, or deploy a WAF to block SQL injection payloads until patching is possible.

Recommended fix Moderate confidence

Any stable release of Novel Plus beyond v4.3.0 (check GitHub releases for post-v4.3.0 versions)

  1. 1. Identify the current Novel Plus version in use by checking the application metadata or deployment configuration
  2. 2. Check the official Novel Plus GitHub repository (github.com/201206030/novel-plus) for releases newer than v4.3.0
  3. 3. If a stable release beyond v4.3.0 is available, plan for upgrade following standard deployment procedures
  4. 4. Before upgrading in production, test the new version in a staging environment to verify the SQL injection vulnerability is remediated
  5. 5. Alternatively, if no upgrade is immediately available, implement input validation and sanitization on the /novel/userFeedback/list endpoint parameters (offset, limit, sort) to mitigate SQL injection risk
  6. 6. Apply parameterized queries or prepared statements for any custom code interacting with the database related to these parameters
Caveat Review release notes for any breaking changes between current version and target version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Novel Plus Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-24021 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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