CVE-2026-5127 Deserialization in User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration
Authenticated attackers can inject PHP objects via the wpuf_files parameter to execute code or delete files if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5127?
CVE-2026-5127 is a high-severity unsafe deserialization vulnerability in wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration, published on 8 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to Deserialization of Untrusted Data in versions up to, and including, 4.3.1 This is due to insufficient input validation and type checking on the wpuf_files parameter during form submission, combined with unconditional deserialization via maybe_unserialize() when displaying post content. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary PHP objects, which can be leveraged to execute arbitrary code, delete arbitrary files, or perform other malicious actions if a POP chain is present on the target system.
Weakness: CWE-502
Which versions are affected by CVE-2026-5127?
How do I fix CVE-2026-5127?
No fix has been published for CVE-2026-5127 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-2026-5127 being exploited?
There is no known exploitation of CVE-2026-5127 in the wild and no public exploit code.
Sources
Also known as GHSA-jc25-ggg4-hhvw.