CVE-2026-5537
halex CourseSEL HTTP GET Parameter IndexController.class.php check_sel sql injection
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS 5.3EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
05 Apr 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
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
Affected products
halex · CourseSELpublic PoCs found — 1
cve_referencegithub.com/zy606/Vulnerability-Report/tree/main/CourseSEL-SQLiunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.