How severe is CVE-2025-9083?

CVE-2025-9083 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-2025-9083 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-9083?

CVE-2025-9083 affects Ninjaforms Ninja Forms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-9083?

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.

Does CVE-2025-9083 have an EU (EUVD) identifier?

Yes. CVE-2025-9083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29844.

When was CVE-2025-9083 published?

CVE-2025-9083 was published on 2025-09-18 and last updated on 2026-06-17.

CVE-2025-9083

CVE-2025-9083 is a critical-severity vulnerability in Ninjaforms Ninja Forms 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29844
Weakness: CWE-502
Affected product: Ninjaforms Ninja Forms
Published: 2025-09-18
Last modified: 2026-06-17

Description

The Ninja Forms WordPress plugin before 3.11.1 unserializes user input via form field, which could allow Unauthenticated users to perform PHP Object Injection when a suitable gadget is present on the blog.

Frequently asked questions

What is CVE-2025-9083?: The Ninja Forms WordPress plugin before 3.11.1 unserializes user input via form field, which could allow Unauthenticated users to perform PHP Object Injection when a suitable gadget is present on the blog.
How severe is CVE-2025-9083?: CVE-2025-9083 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-2025-9083 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-9083?: CVE-2025-9083 affects Ninjaforms Ninja Forms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-9083?: 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.
Does CVE-2025-9083 have an EU (EUVD) identifier?: Yes. CVE-2025-9083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29844.
When was CVE-2025-9083 published?: CVE-2025-9083 was published on 2025-09-18 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/60b4d7fc-5d23-4dcf-bd7f-e202cabc2625/

Affected products (1)

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

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