How severe is CVE-2026-3261?

CVE-2026-3261 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-3261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3261?

CVE-2026-3261 affects Itsourcecode School Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3261?

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-2026-3261 have an EU (EUVD) identifier?

Yes. CVE-2026-3261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8902.

When was CVE-2026-3261 published?

CVE-2026-3261 was published on 2026-02-26 and last updated on 2026-06-17.

CVE-2026-3261

CVE-2026-3261 is a high-severity vulnerability in Itsourcecode School Management System with a CVSS 3.x base score of 7.3. 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-74.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8902
Weakness: CWE-74
Affected product: Itsourcecode School Management System
Published: 2026-02-26
Last modified: 2026-06-17

Description

A flaw has been found in itsourcecode School Management System 1.0. This impacts an unknown function of the file /settings/index.php of the component Setting Handler. This manipulation of the argument ID causes sql injection. The attack may be initiated remotely. The exploit has been published and may be used.

Frequently asked questions

What is CVE-2026-3261?: A flaw has been found in itsourcecode School Management System 1.0. This impacts an unknown function of the file /settings/index.php of the component Setting Handler. This manipulation of the argument ID causes sql injection. The attack may be initiated remotely. The exploit has been published and may be used.
How severe is CVE-2026-3261?: CVE-2026-3261 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-3261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3261?: CVE-2026-3261 affects Itsourcecode School Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3261?: 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-2026-3261 have an EU (EUVD) identifier?: Yes. CVE-2026-3261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8902.
When was CVE-2026-3261 published?: CVE-2026-3261 was published on 2026-02-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:itsourcecode:school_management_system:1.0:*:*:*:*:*:*:*

More vulnerabilities in Itsourcecode School Management System

CVE-2026-2190 — High (CVSS 7.3): A security flaw has been discovered in itsourcecode School Management System 1.0. This impacts an unknown function of…
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CVE-2026-2014 — High (CVSS 7.3): A security flaw has been discovered in itsourcecode Student Management System 1.0. This impacts an unknown function of…
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