CVE-2026-19116WP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit Form
Updated under an hour ago ()
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It affects Unknown User Frontend. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown User Frontend unknown:user_frontend (from the name) | before 4.3.11 | CNA record |
References
- https://wpscan.com/vulnerability/019d83bd-24d3-4575-9d0b-55f75fdb0bfa/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.