CVE-2026-5537 MEDIUM

CVE-2026-5537: halex CourseSEL HTTP GET Parameter IndexController.class.php check_sel sql injection

Vendor Halex
Product CourseSEL
Weakness CWE-89 · SQLi
Published April 5, 2026
Last update April 6, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

Description

A security vulnerability has been detected in halex CourseSEL up to 1.1.0. Affected by this vulnerability is the function check_sel of the file Apps/Index/Controller/IndexController.class.php of the component HTTP GET Parameter Handler. The manipulation of the argument seid leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

Disclosure timeline

April 5, 2026 CVE published
April 6, 2026 Record updated