Deserialization in Frontend Dashboard

CVE-2026-103693

The Frontend Dashboard WordPress plugin before 3.0.5, ProfileGrid WordPress plugin before 6.0.0.5 do not prevent an unauthenticated user from storing a serialized PHP object in user metadata that is deserialized when a public profile is viewed, allowing PHP object injection that can lead to arbitrary file write and potential remote code execution.

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (14.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • Frontend Dashboard
  • Profilegrid

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-103693?
CVE-2026-103693 is a critical-severity vulnerability in Frontend Dashboard, classified under Deserialization of Untrusted Data. CVSS score: 9.0/10. Published 2026-10-29.
How severe is CVE-2026-103693?
Critical severity. CVSS v3 base score is 9.0 out of 10.