CVE-2026-5537

MEDIUM 6.3

halex CourseSEL HTTP GET Parameter IndexController.class.php check_sel sql injection

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

7th

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.

CWE	CWE-89 CWE-74
Vendor	halex
Product	coursesel
Published	Apr 5, 2026
Last Updated	Apr 6, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

halex / CourseSEL

1.0 1.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/355290 vuldb.com: https://vuldb.com/vuln/355290/cti vuldb.com: https://vuldb.com/submit/782202 github.com: https://github.com/zy606/Vulnerability-Report/tree/main/CourseSEL-SQLi

Credits

🔍 Zyyyy (VulDB User) VulDB CNA Team