CVE-2026-7491: Zyosoft｜School App - Insecure Direct Object Reference

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-02 · updated 2026-10-26
Weakness: CWE-639

Description

School App developed by Zyosoft has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify a specific parameter to read and modify other users' data.

Affected products

Zyosoft School App: before 1.1.62; before 2.7.2 — fixed in 1.1.62, 2.7.2

How to fix

Upgrade to a fixed version: Zyosoft School App 1.1.62, 2.7.2. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-10897-64257-2.html
https://www.twcert.org.tw/tw/cp-132-10896-e3240-1.html

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