How severe is CVE-2026-7491?

CVE-2026-7491 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-7491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-7491?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-7491 have an EU (EUVD) identifier?

Yes. CVE-2026-7491 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26772.

When was CVE-2026-7491 published?

CVE-2026-7491 was published on 2026-05-02 and last updated on 2026-06-17.

CVE-2026-7491

CVE-2026-7491 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 8.6
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26772
Weakness: CWE-639
Published: 2026-05-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-7491?: 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.
How severe is CVE-2026-7491?: CVE-2026-7491 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-7491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-7491?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-7491 have an EU (EUVD) identifier?: Yes. CVE-2026-7491 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26772.
When was CVE-2026-7491 published?: CVE-2026-7491 was published on 2026-05-02 and last updated on 2026-06-17.

References

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