CVE-2025-50127 Overview
CVE-2025-50127 is a SQL injection vulnerability affecting the DJ-Flyer component versions 1.0 through 3.2 for Joomla. The flaw allows authenticated users with elevated privileges to execute arbitrary SQL commands against the underlying database. The vulnerability is classified under [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command).
Successful exploitation can lead to disclosure of sensitive database contents and modification of stored records. The issue requires high privileges and network access, but no user interaction.
Critical Impact
Authenticated attackers with elevated Joomla privileges can read or alter database records by injecting arbitrary SQL through the DJ-Flyer component.
Affected Products
- DJ-Flyer component for Joomla, versions 1.0 through 3.2
- Joomla sites with the DJ-Flyer extension installed and enabled
- Administrative interfaces exposing DJ-Flyer functionality to privileged users
Discovery Timeline
- 2025-07-23 - CVE-2025-50127 published to the National Vulnerability Database
- 2026-04-15 - Last updated in NVD database
Technical Details for CVE-2025-50127
Vulnerability Analysis
The DJ-Flyer component fails to properly neutralize special SQL characters in user-controlled input before incorporating that input into database queries. An authenticated attacker with privileged access to the component can craft requests that break out of the intended query structure. The injected SQL executes with the same database privileges as the Joomla application user.
The vulnerability impacts both confidentiality and integrity of the backend database. Availability is not directly affected according to the published vector. Because the flaw requires high privileges (PR:H), exploitation is constrained to users who already hold administrative or content-management roles within the Joomla site.
Root Cause
The root cause is insufficient input validation and lack of parameterized queries within the DJ-Flyer component code paths that accept user-supplied parameters. Input is concatenated directly into SQL statements rather than being bound through prepared statements or sanitized via the Joomla database API helpers such as quote() and quoteName().
Attack Vector
An attacker authenticates to the Joomla backend with a privileged account, then submits crafted parameters to a vulnerable DJ-Flyer endpoint. The injected payload modifies the resulting SQL query, enabling extraction of database rows through techniques such as UNION-based or boolean-based blind injection. No social engineering or end-user interaction is required.
No public proof-of-concept exploit code is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The EPSS score is 0.32%, indicating a low predicted likelihood of near-term exploitation.
Detection Methods for CVE-2025-50127
Indicators of Compromise
- Unexpected UNION SELECT, SLEEP(, BENCHMARK(, or INFORMATION_SCHEMA substrings in Joomla access logs targeting DJ-Flyer URLs
- HTTP requests to DJ-Flyer component endpoints containing encoded quote characters (%27, %22) or SQL comment markers (--, /*)
- Database error messages referencing DJ-Flyer queries appearing in Joomla error logs
- Unusual outbound data volume from the Joomla web server following privileged user activity
Detection Strategies
- Enable web server access logging and inspect query strings sent to index.php?option=com_djflyer* URLs for SQL metacharacters
- Deploy a web application firewall with SQL injection signature rules in front of the Joomla site
- Audit Joomla user accounts holding administrator, manager, or publisher roles and correlate their session activity with database query logs
- Enable MySQL or MariaDB general query logging on a sampled basis to identify malformed queries originating from the DJ-Flyer component
Monitoring Recommendations
- Forward Joomla access, error, and database logs to a centralized SIEM for correlation and retention
- Alert on authentication events for privileged Joomla accounts from unfamiliar source IP addresses
- Track configuration and content changes performed by privileged users immediately after login
How to Mitigate CVE-2025-50127
Immediate Actions Required
- Inventory all Joomla installations and identify sites running the DJ-Flyer component at versions 1.0 through 3.2
- Restrict access to the Joomla administrator backend using IP allowlisting or VPN-only access until a patched version is deployed
- Review and reduce the number of accounts assigned privileged Joomla roles to limit the exploitation surface
- Rotate credentials for any privileged Joomla accounts suspected of compromise
Patch Information
No vendor patch is currently referenced in the NVD entry. Administrators should consult the DJ Extensions Website for the latest DJ-Flyer release and apply any version newer than 3.2 once available. Subscribe to vendor security notifications to receive patch announcements.
Workarounds
- Disable or uninstall the DJ-Flyer component on affected Joomla sites until a fixed version is published by the vendor
- Place the Joomla administrator path behind HTTP basic authentication or a reverse proxy that enforces additional authentication
- Deploy WAF rules to block requests targeting DJ-Flyer endpoints that contain SQL metacharacters or known injection patterns
- Enforce least privilege by demoting unnecessary administrator and manager accounts to lower-privileged roles
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
