CVE-2026-49048: Joomcoder Joomcck SQLi Vulnerability

CVE-2026-49048 Overview

CVE-2026-49048 is a SQL injection vulnerability [CWE-89] in the JoomCCK extension for Joomla, developed by JoomCoder. The flaw resides in a front-end controller task that constructs two SQL statements by concatenating a user-supplied request parameter directly into the query string. The affected code does not escape or parameterize the input, allowing attackers to inject arbitrary SQL syntax. Because the vulnerable endpoint is reachable without authentication, any unauthenticated remote attacker can send crafted HTTP requests to extract data from the backing database.

Critical Impact
Unauthenticated attackers can execute arbitrary SQL queries against the Joomla database, exposing user credentials, session tokens, and other sensitive content.

Affected Products

JoomCoder JoomCCK extension for Joomla
Joomla sites with JoomCCK installed and the vulnerable front-end controller enabled
CPE: cpe:2.3:a:joomcoder:joomcck:*:*:*:*:*:joomla\!:*:*

Discovery Timeline

2026-06-28 - CVE-2026-49048 published to the National Vulnerability Database (NVD)
2026-06-30 - Last updated in NVD database

Technical Details for CVE-2026-49048

Vulnerability Analysis

The vulnerability stems from unsafe SQL query construction in a front-end controller task exposed by the JoomCCK extension. The controller reads a request parameter directly from user-controlled HTTP input and concatenates its value into two SQL statements. No escaping via the Joomla database API and no prepared-statement binding is performed before the queries are executed.

The issue maps to [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command). Because the endpoint is a front-end task, no authentication or user interaction is required to reach the sink. An attacker can therefore issue a single HTTP request that alters the intended SQL logic, appends UNION SELECT clauses, or triggers time-based blind extraction.

Exploitation leads to disclosure of arbitrary data stored in the Joomla database, including the #__users table containing password hashes and session identifiers. The CVSS 4.0 assessment reports impact limited to confidentiality, with integrity and availability rated as none. The EPSS score is 0.505% at the 39.44 percentile.

Root Cause

The root cause is direct string concatenation of an untrusted request parameter into two SQL statements without input validation, escaping, or parameterized queries. The Joomla JDatabase API provides quote(), quoteName(), and prepared statements via bind(), none of which are applied in the vulnerable code path.

Attack Vector

The attack vector is network-based and requires no privileges or user interaction. An attacker sends a crafted HTTP GET or POST request to the JoomCCK front-end controller task endpoint. The malicious parameter value contains SQL metacharacters that break out of the intended query context.

Refer to the JoomCoder Security Resource for vendor-supplied technical details and remediation guidance.

Detection Methods for CVE-2026-49048

Indicators of Compromise

HTTP requests targeting JoomCCK front-end controller tasks that contain SQL metacharacters such as single quotes, UNION SELECT, SLEEP(, or -- comment sequences
Web server access logs showing repeated requests to index.php with option=com_joomcck and abnormally long or encoded query parameters
Unexpected outbound queries against #__users, #__session, or other Joomla core tables originating from the JoomCCK component

Detection Strategies

Deploy Web Application Firewall (WAF) signatures that inspect requests to com_joomcck endpoints for SQL injection payloads and boolean or time-based patterns
Enable Joomla database query logging and alert on parameterized-query violations or anomalous query structures referencing sensitive tables
Correlate spikes in 500-series HTTP responses from the JoomCCK component with subsequent successful requests from the same source IP

Monitoring Recommendations

Monitor web access logs for high-entropy or URL-encoded values in JoomCCK request parameters
Track database process time and slow-query logs for SLEEP() or BENCHMARK() invocations that indicate time-based blind SQL injection
Alert on new administrator accounts, password resets, or session token anomalies following suspicious JoomCCK traffic

How to Mitigate CVE-2026-49048

Immediate Actions Required

Disable or uninstall the JoomCCK component until a vendor-supplied patched version is confirmed installed
Restrict access to index.php?option=com_joomcck via WAF rules or .htaccess while remediation is pending
Rotate credentials, API keys, and session secrets stored in the Joomla database if exploitation is suspected

Patch Information

At the time of publication, no fixed version is listed in the CVE record. Administrators should consult the JoomCoder Security Resource for the latest patched release of JoomCCK and apply the update immediately once available.

Workarounds

Block or rate-limit HTTP requests to com_joomcck controller tasks at the reverse proxy or WAF layer
Apply virtual patching rules that reject requests containing SQL metacharacters in JoomCCK parameters
Enforce least-privilege database accounts so the Joomla runtime user cannot read tables outside its required scope

bash

# Example Apache rule to block direct access to the vulnerable component
<LocationMatch "index\.php">
    <If "%{QUERY_STRING} =~ /option=com_joomcck/">
        Require all denied
    </If>
</LocationMatch>