What’s Vulnerable › Vulnerabilities

CVE-2016-1209

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 61.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-05-14 · updated 2026-06-17
• Weakness: CWE-20

Description

The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via crafted serialized values in a POST request.

Affected products

• kstover Ninja Forms – The Contact Form Builder That Grows With You: through 2.9.42

References

• http://jvn.jp/en/jp/JVN44657371/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2016-000064
• http://packetstormsecurity.com/files/137211/WordPress-Ninja-Forms-Unauthenticated-File-Upload.html
• http://www.pritect.net/blog/ninja-forms-2-9-42-critical-security-vulnerabilities
• http://www.rapid7.com/db/modules/exploit/unix/webapp/wp_ninja_forms_unauthenticated_file_upload
• https://ninjaforms.com/important-security-update-always-hurt-ones-love/
• https://wordpress.org/plugins/ninja-forms/changelog/
• https://wpvulndb.com/vulnerabilities/8485
• http://jvn.jp/en/jp/JVN44657371/index.html
• http://jvndb.jvn.jp/jvndb/JVNDB-2016-000064
• http://packetstormsecurity.com/files/137211/WordPress-Ninja-Forms-Unauthenticated-File-Upload.html
• http://www.pritect.net/blog/ninja-forms-2-9-42-critical-security-vulnerabilities

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