CVE-2026-5537 | halex CourseSEL up to 1.1.0 HTTP GET Parameter IndexController.class.php check_sel seid sql injection

VDB-355290 · CVE-2026-5537 · GCVE-100-355290 HALEX COURSESEL UP TO 1.1.0 HTTP GET PARAMETER INDEXCONTROLLER.CLASS.PHP CHECK_SEL SEID SQL INJECTION HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability described as critical has been identified in halex CourseSEL up to 1.1.0. Affected by this issue 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 results in sql injection. This vulnerability is known as CVE-2026-5537. It is possible to launch the attack remotely. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in halex CourseSEL up to 1.1.0. It has been classified as critical. Affected 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 with an unknown input leads to a sql injection vulnerability. CWE is classifying the issue as CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The advisory is available at github.com. This vulnerability is traded as CVE-2026-5537. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known. This vulnerability is assigned to T1505 by the MITRE ATT&CK project. The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:Apps/Index/Controller/IndexController.class.php it is possible to find vulnerable targets with Google Hacking. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor halex Name CourseSEL Version 1.0 1.1.0 CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 5.7 VulDB Base Score: 6.3 VulDB Temp Score: 5.7 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Sql injection CWE: CWE-89 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/04/2026 Advisory disclosed 04/04/2026 +0 days VulDB entry created 04/04/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-5537 (🔒) GCVE (CVE): GCVE-0-2026-5537 GCVE (VulDB): GCVE-100-355290 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/04/2026 08:47 Changes: 04/04/2026 08:47 (58) Complete: 🔍 Submitter: Zyyyy Cache ID: 99:04E:101 Submitinfo Accepted Submit #782202: halex CourseSEL 1.1.0 SQL Injection (by Zyyyy) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸