CVE-2016-1209 Deserialization in n/a
Remote attackers can execute arbitrary code via PHP object injection in the Ninja Forms WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-1209?
CVE-2016-1209 is a critical unsafe deserialization vulnerability in Ninjaforms Ninja Forms, published on 14 May 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2016-1209?
It affects 1 product.
Products include Ninjaforms Ninja Forms.
How do I fix CVE-2016-1209?
No fix has been published for CVE-2016-1209 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2016-1209 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-1209 exists.
Public exploit code: 1 Metasploit module and 1 Exploit-DB entry.
Other vulnerabilities in Ninjaforms Ninja Forms
- CVE-2025-9083 Ninja-forms < 3.11.1 - Unauthenticated PHP Objection
- CVE-2018-20981 Information disclosure in n/a
- CVE-2024-25572 Cross-site request forgery in Ninja Forms
- CVE-2021-24163 Ninja Forms < 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure
- CVE-2018-16308 Other in n/a
Sources
Also known as GHSA-3qv8-hqcp-vhrh.