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Timetabling System CVE-2026-13488

| EUVDEUVD-2026-39988 MEDIUM
SQL Injection (CWE-89)
2026-06-28 VulDB GHSA-6j43-r7wj-rqwv
SQLi PHP Class And Exam Timetabling System
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.3 HIGH

Network-reachable unauthenticated endpoint with no complexity; partial C/I/A reflects typical SQLi impact without confirmed DBA-level privileges enabling full compromise.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS changed
Jun 28, 2026 - 11:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
Analysis Generated
Jun 28, 2026 - 11:15 vuln.today

DescriptionCVE.org

A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0/7.php. Affected by this vulnerability is an unknown functionality of the file /preview7.php. The manipulation of the argument course_year_section results in sql injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

SQL injection in SourceCodester Class and Exam Timetabling System 1.0 exposes the /preview7.php endpoint to unauthenticated remote exploitation via unsanitized input in the course_year_section parameter. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms zero-friction remote exploitation with no authentication or user interaction required. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify publicly accessible /preview7.php endpoint
Delivery
Inject SQL payload via course_year_section parameter
Exploit
Bypass query logic in PHP backend
Execution
Extract database schema and table contents
Impact
Retrieve credentials or sensitive records
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Vulnerability AssessmentAI

Exploitation No special conditions are required for exploitation - the CVSS 4.0 vector AV:N/AC:L/AT:N/PR:N/UI:N confirms this is a remote, unauthenticated, zero-complexity attack against the `/preview7.php` endpoint with no user interaction needed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 6.9 with vector AV:N/AC:L/AT:N/PR:N/UI:N reflects a low-complexity, network-reachable, unauthenticated attack with partial impact across confidentiality, integrity, and availability (VC:L/VI:L/VA:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated remote attacker sends a crafted HTTP GET or POST request to `/preview7.php` with a SQL injection payload embedded in the `course_year_section` parameter (e.g., `course_year_section=1' UNION SELECT username,password,3 FROM users--`). The backend PHP script passes the unsanitized value directly into a SQL query, causing the database to return sensitive data such as credentials or student records in the HTTP response. …
Remediation No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-13488 vulnerability details – vuln.today
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