Reflected Cross-Site Scripting (XSS) in Sanoma’s Clickedu

Posted date 23/03/2026
Identificador
INCIBE-2026-210
Importance
3 - Medium
Affected Resources

Clickedu, versions prior to 5.1. 

Description

INCIBE has coordinated the disclosure of a medium-severity vulnerability affecting Sanoma’s Cilckedu, a school management platform. The vulnerability was discovered by Gonzalo Aguilar García (6h4ack). 

This vulnerability has been assigned the following identifier, CVSS v4.0 base score, CVSS vector and CWE vulnerability type: 

  • CVE-2026-5010: CVSS v4.0: 5.1 | CVSS AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | CWE-79 
Solution

The vulnerability has been fixed by the Sanoma team in version 5.1. 

Detail

CVE-2026-5010: A reflected Cross-Site Scripting (XSS) vulnerability has been discovered in Clickedu. This vulnerability allows an attacker to execute JavaScript code in the victim’s browser by sending them a malicious URL using the endpoint “/user.php/<XSS>”. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on the user’s behalf. 

CVE
Identificador CVE Severidad Explotación Fabricante
CVE-2026-5010 Media No Sanoma
References list
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