CVE-2026-5537 describes a SQL Injection vulnerability affecting halex CourseSEL versions up to 1.1.0, specifically in the `check_sel` function of `IndexController.class.php`. This medium-severity flaw (CVSS 6.3) allows a remote attacker with low privileges to manipulate the `seid` GET parameter, potentially impacting confidentiality, integrity, and availability. The exploit has been publicly disclosed and is listed as "Active" on the Hot List, indicating a recognized threat. While not yet in the CISA KEV catalog or major exploit databases, the vendor was unresponsive to the initial disclosure, suggesting a potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Halex | CourseSEL | 1.0, 1.1.0CNA affected |
CVSS version used by this source: 4.0
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/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
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.