CVE-2026-19116CWE-502insecure-deserialization

CVE-2026-19116

High · published September 2, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
34.7
In the wild
Unconfirmed
What it is

The User Frontend WordPress plugin before 4.3.11 does not prevent user-supplied field values from being deserialized when a submitted post is reopened in its frontend editing form, allowing authenticated users with subscriber-level access and above to perform PHP Object Injection, which may lead to remote code execution when a suitable gadget chain is present on the site.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00415 · 34.7th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-02T10:17Z
References (1)
https://wpscan.com/vulnerability/019d83bd-24d3-4575-9d0b-55f75fdb0bfa/ · [email protected]
EPSS history
Timeline
  • 03 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 02 SEP 06:00Z
    WP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit Form
    cvelistv5