How severe is CVE-2018-16308?

CVE-2018-16308 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-16308 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16308?

CVE-2018-16308 affects Ninjaforms Ninja Forms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16308?

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.

When was CVE-2018-16308 published?

CVE-2018-16308 was published on 2018-09-01 and last updated on 2026-06-17.

CVE-2018-16308

CVE-2018-16308 is a high-severity vulnerability in Ninjaforms Ninja Forms with a CVSS 3.x base score of 8.6. 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-1236.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 6.8
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1236
Affected product: Ninjaforms Ninja Forms
Published: 2018-09-01
Last modified: 2026-06-17

Description

The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection.

Frequently asked questions

What is CVE-2018-16308?: The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection.
How severe is CVE-2018-16308?: CVE-2018-16308 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-16308 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16308?: CVE-2018-16308 affects Ninjaforms Ninja Forms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16308?: 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.
When was CVE-2018-16308 published?: CVE-2018-16308 was published on 2018-09-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*

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