CVE-2026-8129 Overview
CVE-2026-8129 is a SQL injection vulnerability in SourceCodester SUP Online Shopping 1.0. The flaw resides in the wishlist.php file, where the delwlistid parameter is passed to a database query without proper sanitization. Remote attackers can manipulate this parameter to inject arbitrary SQL statements against the backend database. The exploit has been publicly disclosed, increasing the likelihood of opportunistic abuse against exposed deployments. The vulnerability is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Remote, unauthenticated attackers can inject SQL through the delwlistid parameter in wishlist.php, potentially exposing or modifying database contents in SUP Online Shopping 1.0.
Affected Products
- SourceCodester SUP Online Shopping 1.0
- wishlist.php component
- Deployments exposing the delwlistid parameter to remote requests
Discovery Timeline
- 2026-05-08 - CVE-2026-8129 published to NVD
- 2026-05-08 - Last updated in NVD database
Technical Details for CVE-2026-8129
Vulnerability Analysis
The vulnerability exists in the wishlist management functionality of SUP Online Shopping 1.0. The wishlist.php script accepts the delwlistid argument from user-controlled input and concatenates it into a SQL query without parameterization or input validation. Attackers can submit crafted values for delwlistid to alter the query logic. Successful exploitation enables data extraction, authentication bypass through query manipulation, or unauthorized modification of database records.
The attack requires no authentication and no user interaction. Attackers can target the endpoint directly over the network using standard HTTP requests. Because the proof-of-concept has been publicly released, automated scanners and opportunistic attackers can identify and exploit vulnerable instances quickly.
Root Cause
The root cause is the absence of prepared statements or input sanitization when handling the delwlistid parameter. The application trusts the supplied value and embeds it directly into the SQL DELETE statement used to remove wishlist entries. This violates secure coding practices that require parameterized queries for all user-supplied input reaching the database layer.
Attack Vector
The attack vector is network-based. An attacker sends a crafted HTTP request to wishlist.php containing a malicious delwlistid value. The injected SQL fragment executes within the context of the application's database user, allowing the attacker to read, modify, or delete records that the account can access. The EPSS score is 0.039% with a percentile of 11.888, reflecting limited current exploitation activity despite public PoC availability.
No verified exploit code is reproduced here. Technical details are available in the GitHub CVE Issue Discussion and VulDB Vulnerability Details.
Detection Methods for CVE-2026-8129
Indicators of Compromise
- HTTP requests to wishlist.php containing SQL metacharacters such as single quotes, UNION, SELECT, --, or ; within the delwlistid parameter
- Database error messages referencing SQL syntax errors logged near wishlist-related requests
- Unusual outbound data volume following requests to the wishlist endpoint
- Unexpected DELETE, SELECT, or UNION statements in database query logs targeting the wishlist table
Detection Strategies
- Deploy web application firewall (WAF) rules that flag SQL injection patterns in delwlistid query parameters
- Enable verbose database query logging and correlate query anomalies with web access logs
- Monitor application logs for HTTP 500 responses originating from wishlist.php requests
- Inspect requests for encoded payloads such as URL-encoded quotes or hex-encoded SQL keywords
Monitoring Recommendations
- Alert on repeated requests to wishlist.php from a single source within short time windows
- Track database accounts used by the web application for anomalous query patterns and bulk reads
- Forward web server, WAF, and database logs to a centralized SIEM for correlation and retention
How to Mitigate CVE-2026-8129
Immediate Actions Required
- Restrict public access to wishlist.php until a patched version is deployed
- Place the application behind a WAF configured with SQL injection signatures
- Audit database accounts used by the application and enforce least privilege on wishlist tables
- Review web and database logs for prior exploitation attempts targeting the delwlistid parameter
Patch Information
No official vendor patch has been published for SourceCodester SUP Online Shopping 1.0 at the time of NVD publication. Operators should monitor the SourceCodester Security Blog for vendor updates and consult the VulDB Vulnerability Details entry for remediation guidance.
Workarounds
- Modify wishlist.php to use prepared statements or parameterized queries for the delwlistid value
- Cast the delwlistid argument to an integer before using it in any SQL statement
- Reject requests where delwlistid contains non-numeric characters at the input validation layer
- Disable the wishlist feature if it is not required for business operations
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
