How severe is CVE-2018-18793?

CVE-2018-18793 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-18793 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18793?

CVE-2018-18793 affects School Event Management System Project School Event Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18793?

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

When was CVE-2018-18793 published?

CVE-2018-18793 was published on 2018-11-16 and last updated on 2026-06-17.

CVE-2018-18793

CVE-2018-18793 is a critical-severity vulnerability in School Event Management System Project School Event Management System with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: School Event Management System Project School Event Management System
Published: 2018-11-16
Last modified: 2026-06-17

Description

School Event Management System 1.0 allows Arbitrary File Upload via event/controller.php?action=photos.

Frequently asked questions

What is CVE-2018-18793?: School Event Management System 1.0 allows Arbitrary File Upload via event/controller.php?action=photos.
How severe is CVE-2018-18793?: CVE-2018-18793 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-18793 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18793?: CVE-2018-18793 affects School Event Management System Project School Event Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18793?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-18793 published?: CVE-2018-18793 was published on 2018-11-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:school_event_management_system_project:school_event_management_system:1.0:*:*:*:*:*:*:*

More vulnerabilities in School Event Management System Project School Event Management System

CVE-2018-18795 — Critical (CVSS 9.8): School Event Management System 1.0 has SQL Injection via the student/index.php or event/index.php id parameter.
CVE-2018-18794 — High (CVSS 8.8): School Event Management System 1.0 allows CSRF via user/controller.php?action=edit.

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