How severe is CVE-2018-6398?

CVE-2018-6398 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-2018-6398 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6398?

CVE-2018-6398 affects Joomlacalendars Event Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6398?

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-2018-6398 published?

CVE-2018-6398 was published on 2018-01-30 and last updated on 2026-06-17.

CVE-2018-6398

CVE-2018-6398 is a critical-severity vulnerability in Joomlacalendars Event Calendar 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Joomlacalendars Event Calendar
Published: 2018-01-30
Last modified: 2026-06-17

Description

SQL Injection exists in the CP Event Calendar 3.0.1 component for Joomla! via the id parameter in a task=load action.

Frequently asked questions

What is CVE-2018-6398?: SQL Injection exists in the CP Event Calendar 3.0.1 component for Joomla! via the id parameter in a task=load action.
How severe is CVE-2018-6398?: CVE-2018-6398 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-2018-6398 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6398?: CVE-2018-6398 affects Joomlacalendars Event Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6398?: 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-2018-6398 published?: CVE-2018-6398 was published on 2018-01-30 and last updated on 2026-06-17.

References

https://www.exploit-db.com/exploits/43932/

Affected products (1)

cpe:2.3:a:joomlacalendars:event_calendar:3.0.1:*:*:*:*:joomla\!:*:*

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