How severe is CVE-2019-14789?

CVE-2019-14789 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-14789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14789?

CVE-2019-14789 affects Kunalnagar Custom 404 Pro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14789?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-14789 published?

CVE-2019-14789 was published on 2019-08-15 and last updated on 2026-06-17.

CVE-2019-14789

CVE-2019-14789 is a medium-severity vulnerability in Kunalnagar Custom 404 Pro with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Kunalnagar Custom 404 Pro
Published: 2019-08-15
Last modified: 2026-06-17

Description

The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.

Frequently asked questions

What is CVE-2019-14789?: The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.
How severe is CVE-2019-14789?: CVE-2019-14789 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-14789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14789?: CVE-2019-14789 affects Kunalnagar Custom 404 Pro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-14789 published?: CVE-2019-14789 was published on 2019-08-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kunalnagar:custom_404_pro:3.2.8:*:*:*:*:wordpress:*:*

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