CVE-2026-14734 Overview
CVE-2026-14734 is a SQL injection vulnerability in SourceCodester Class and Exam Timetabling System 1.0. The flaw resides in the /edit_product.php script, where the ID parameter is passed to a backend database query without proper sanitization. Attackers can manipulate this argument to inject arbitrary SQL statements. Exploitation is possible over the network without authentication or user interaction. A public exploit has been disclosed, increasing the likelihood of opportunistic attacks against exposed installations. The weakness is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Unauthenticated remote attackers can inject SQL commands through the ID parameter in /edit_product.php, potentially exposing or modifying database contents.
Affected Products
- SourceCodester Class and Exam Timetabling System 1.0
- Component: /edit_product.php
- Vulnerable parameter: ID
Discovery Timeline
- 2026-07-05 - CVE-2026-14734 published to NVD
- 2026-07-06 - Last updated in NVD database
Technical Details for CVE-2026-14734
Vulnerability Analysis
The vulnerability affects the /edit_product.php endpoint in SourceCodester Class and Exam Timetabling System 1.0. The application accepts the ID request parameter and incorporates it directly into a SQL query without parameterization or input validation. This allows an attacker to break out of the intended query context and append arbitrary SQL clauses. The issue is remotely exploitable and requires no authentication or user interaction. According to VulDB, the exploit has been published, which lowers the barrier to attack. The EPSS data indicates a probability of 0.412% with a percentile of 33.198, reflecting current predictive likelihood of exploitation in the wild.
Root Cause
The root cause is improper neutralization of special elements passed to a downstream SQL interpreter [CWE-74]. The edit_product.php script constructs SQL statements through string concatenation using the untrusted ID value. Because the parameter is not bound as a prepared statement variable, characters such as single quotes, comment sequences, and UNION clauses are interpreted by the database engine.
Attack Vector
An unauthenticated remote attacker sends a crafted HTTP request to /edit_product.php with a malicious value for the ID parameter. Typical payloads use boolean-based, union-based, or time-based blind SQL injection techniques to enumerate database schemas, extract credentials from user tables, or modify records. The vulnerability applies to any installation reachable over the network, including internet-exposed deployments. See the VulDB vulnerability record and GitHub CVE issue for public technical details.
No verified proof-of-concept code is included here. Refer to the VulDB entry for CVE-2026-14734 for reported exploitation details.
Detection Methods for CVE-2026-14734
Indicators of Compromise
- HTTP requests to /edit_product.php containing SQL metacharacters in the ID parameter, such as single quotes, --, UNION SELECT, or SLEEP(.
- Web server or application logs showing repeated 500 errors, unusually long response times, or malformed responses tied to the ID parameter.
- Database logs recording unexpected UNION, INFORMATION_SCHEMA, or BENCHMARK queries originating from the timetabling application.
Detection Strategies
- Deploy web application firewall (WAF) signatures that inspect the ID parameter on /edit_product.php for SQL injection payloads.
- Enable database query logging and alert on queries containing tautologies (OR 1=1), stacked queries, or references to system tables from the application user.
- Correlate web access logs with database audit logs to identify anomalous query volumes from the timetabling application host.
Monitoring Recommendations
- Monitor outbound connections and data volumes from the database server to detect exfiltration following successful injection.
- Track authentication failures and account changes in the application database that may indicate credential extraction.
- Alert on any invocation of /edit_product.php from unexpected source IP ranges or geographic regions.
How to Mitigate CVE-2026-14734
Immediate Actions Required
- Restrict network access to the Class and Exam Timetabling System, placing it behind authenticated VPN or IP allow-listing until a fix is applied.
- Deploy WAF rules that block SQL injection patterns on the ID parameter of /edit_product.php.
- Review database logs for prior exploitation attempts and rotate any credentials stored in the affected database.
Patch Information
No vendor patch has been published in the referenced advisories at the time of writing. SourceCodester has not released an official fix for CVE-2026-14734. Operators should track the SourceCodester site and the VulDB record for updates.
Workarounds
- Modify edit_product.php to use parameterized queries or prepared statements instead of string concatenation for the ID value.
- Enforce server-side input validation to accept only numeric values for ID before passing it to the database layer.
- Apply least-privilege configuration on the database account used by the application, removing DROP, ALTER, and FILE permissions.
# Example WAF rule concept for blocking SQLi on the ID parameter
# (ModSecurity CRS-style pseudocode)
SecRule ARGS:ID "@rx (?i)(union(\s|/\*.*\*/)+select|sleep\(|benchmark\(|--|;|')" \
"id:1014734,phase:2,deny,status:403,msg:'CVE-2026-14734 SQLi attempt on /edit_product.php'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
