Vulnerability · 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 gadge
Published Sep 18, 2025 · catalog updated Sep 22, 2025 · Unknown Ninja Forms
Last checked Oct 29, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-9083. EPSS is 0.54%. Act only if a listed version of Unknown Ninja Forms is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-14072 · Medium
- CVE-2025-2524 · Medium
- CVE-2025-2560 · Medium
- CVE-2025-2561 · Medium
- Severity
- Critical9.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.54%
- Remediation
- Version ranges on file
- Affected products
- vendor Unknown Ninja Forms 0 <3.11.1
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Unknown Ninja Forms 0 <3.11.10 <3.11.1
How to fix CVE-2025-9083
Upgrade
CVE-2025-9083 lists a fix boundary at 3.11.1. Compare the installed build with that boundary before you change production.
Version check
Seen in 0 <3.11.1
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-9083. EPSS is 0.54%. Act only if a listed version of Unknown Ninja Forms is installed.
Which versions are affected?
Compare what you have installed with Unknown Ninja Forms 0 <3.11.1 0 <3.11.1. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.54%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 18, 2025 · EUVD
Detected
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.
Sep 22, 2025 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2025-9083
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-9083
30-day exploitation probability 0.54%
first.org - EUVDVulnerability recordEUVD-2025-29844
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.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 29, 2026
- CVE.orgOct 23, 2026
- EUVDOct 23, 2026