| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Zyosoft School App up to 1.1.61/2.7.1 and classified as critical. The affected element is an unknown function. The manipulation leads to authorization. This vulnerability is traded as CVE-2026-7491. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.
Details
A vulnerability, which was classified as critical, has been found in Zyosoft School App up to 1.1.61/2.7.1. This issue affects an unknown part. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
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.
It is possible to read the advisory at twcert.org.tw. The identification of this vulnerability is CVE-2026-7491 since 04/30/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available.
Upgrading to version 1.1.62 or 2.7.2 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26772). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
- 1.1.0
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.6
- 1.1.7
- 1.1.8
- 1.1.9
- 1.1.10
- 1.1.11
- 1.1.12
- 1.1.13
- 1.1.14
- 1.1.15
- 1.1.16
- 1.1.17
- 1.1.18
- 1.1.19
- 1.1.20
- 1.1.21
- 1.1.22
- 1.1.23
- 1.1.24
- 1.1.25
- 1.1.26
- 1.1.27
- 1.1.28
- 1.1.29
- 1.1.30
- 1.1.31
- 1.1.32
- 1.1.33
- 1.1.34
- 1.1.35
- 1.1.36
- 1.1.37
- 1.1.38
- 1.1.39
- 1.1.40
- 1.1.41
- 1.1.42
- 1.1.43
- 1.1.44
- 1.1.45
- 1.1.46
- 1.1.47
- 1.1.48
- 1.1.49
- 1.1.50
- 1.1.51
- 1.1.52
- 1.1.53
- 1.1.54
- 1.1.55
- 1.1.56
- 1.1.57
- 1.1.58
- 1.1.59
- 1.1.60
- 1.1.61
- 2.7.0
- 2.7.1
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 7.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.1
CNA Vector (twcert): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 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: 🔍
Exploiting
Class: AuthorizationCWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: School App 1.1.62/2.7.2
Timeline
04/30/2026 CVE reserved05/02/2026 Advisory disclosed
05/02/2026 VulDB entry created
05/02/2026 VulDB entry last update
Sources
Advisory: twcert.org.twStatus: Confirmed
CVE: CVE-2026-7491 (🔒)
GCVE (CVE): GCVE-0-2026-7491
GCVE (VulDB): GCVE-100-360839
EUVD: 🔒
Entry
Created: 05/02/2026 12:56Updated: 05/02/2026 13:25
Changes: 05/02/2026 12:56 (74), 05/02/2026 13:25 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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