CVE-2026-39486
Blind SQL Injection in WP Chill Download Monitor
Publication date: 2026-04-08
Last updated on: 2026-04-29
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wp_chill | download_monitor | to 5.1.8 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The SQL Injection vulnerability in the WordPress Download Monitor plugin allows unauthorized access or theft of data from the plugin's database. Such unauthorized data access can lead to breaches of sensitive or personal information.
This type of vulnerability can negatively impact compliance with data protection regulations such as GDPR and HIPAA, which require organizations to protect personal and sensitive data from unauthorized access and breaches.
Failure to patch this vulnerability and prevent unauthorized data access could result in non-compliance with these standards, potentially leading to legal and financial consequences.
Can you explain this vulnerability to me?
CVE-2026-39486 is an SQL Injection vulnerability found in the WordPress Download Monitor plugin versions up to and including 5.1.8.
This vulnerability allows a malicious user with at least Contributor or Developer privileges to manipulate the plugin's database by injecting malicious SQL commands.
It is classified under the OWASP Top 10 category A3: Injection and has a high severity score of 8.5.
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to unauthorized access to or theft of data stored in the plugin's database.
Attackers can use this flaw to execute arbitrary SQL commands, potentially compromising the integrity and confidentiality of your website's data.
Because the vulnerability can be exploited by users with Contributor or Developer privileges, it poses a significant risk even if the attacker does not have full administrative access.
This vulnerability has been noted for its potential use in mass-exploit campaigns targeting many websites.
What immediate steps should I take to mitigate this vulnerability?
To mitigate the SQL Injection vulnerability in the WordPress Download Monitor plugin (CVE-2026-39486), you should immediately update the plugin to version 5.1.9 or later, where the issue has been patched.
Additionally, consider enabling auto-updates for vulnerable plugins to ensure timely patching against future vulnerabilities.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability affects the WordPress Download Monitor plugin versions up to and including 5.1.8 and allows Blind SQL Injection by users with at least Contributor or Developer privileges.
To detect if your system is vulnerable, first verify the plugin version installed on your WordPress site. If it is version 5.1.8 or earlier, it is vulnerable.
You can check the plugin version using the following WP-CLI command:
- wp plugin list --status=active | grep download-monitor
To detect potential exploitation attempts or suspicious SQL injection activity, you can monitor your web server logs for unusual requests targeting the Download Monitor plugin endpoints, especially those containing SQL syntax or suspicious parameters.
Example command to search Apache or Nginx logs for suspicious requests:
- grep -iE "(download-monitor|select|union|sleep|benchmark|--|;|')" /var/log/apache2/access.log
- grep -iE "(download-monitor|select|union|sleep|benchmark|--|;|')" /var/log/nginx/access.log
Additionally, you can use security plugins or web application firewalls (WAFs) that detect SQL injection patterns to help identify exploitation attempts.
The best mitigation is to update the Download Monitor plugin to version 5.1.9 or later.