CVE-2025-6535
BaseFortify
Publication date: 2025-06-24
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| xxyopen | novel-plus | to 5.1.3 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-74 | The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. |
| CWE-89 | The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-6535 is a critical SQL injection vulnerability in the novel-plus application version 5.1.3, specifically in the User Management Module's /list endpoint. The vulnerability arises because the application unsafely incorporates user-controlled 'sort' and 'order' parameters directly into the SQL ORDER BY clause using string substitution without proper sanitization or parameterization. This allows an authenticated attacker to inject arbitrary SQL commands, potentially extracting sensitive user data such as usernames, email addresses, and password hashes from the sys_user table. [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability can severely impact you by allowing an authenticated attacker to perform SQL injection attacks on the user management system. Through this, attackers can exfiltrate highly sensitive information including usernames, email addresses, and password hashes of all user accounts. This compromises the confidentiality, integrity, and availability of the system, potentially leading to unauthorized access, data breaches, and further exploitation of the affected system. [1, 2, 3]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by testing the `/sys/user/list` endpoint of the novel-plus application for SQL injection via the `sort` and `order` parameters. A common detection method is to send crafted HTTP GET requests with malicious payloads in these parameters to observe abnormal behavior such as delays caused by time-based SQL injection. For example, using curl to test the time-based injection: `curl -i 'http://<target>/sys/user/list?sort=(SELECT(CASE WHEN(1=1) THEN SLEEP(5) ELSE 1 END))&order=asc'`. If the response is delayed significantly, it indicates the presence of the vulnerability. Additionally, authenticated access is required to reach this endpoint. Monitoring logs for unusual or malformed requests to `/sys/user/list` with suspicious `sort` or `order` values can also help detect exploitation attempts. [2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting access to the vulnerable `/sys/user/list` endpoint to trusted users only, ideally limiting it to administrators or internal networks. Since the vendor has not provided a patch or fix, consider disabling or removing the affected User Management Module if possible. Implement web application firewall (WAF) rules to detect and block SQL injection attempts targeting the `sort` and `order` parameters. Monitoring and alerting on suspicious activity related to this endpoint is also recommended. Ultimately, replacing the affected component with a secure alternative or applying custom code fixes to properly sanitize and parameterize the `sort` and `order` inputs is necessary for a long-term solution. [3]