Deserialization in Elated-Themes Valiance

CVE-2026-39578

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-39578: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-39578?
CVE-2026-39578 is a medium-severity vulnerability in Elated-Themes Valiance, classified under Deserialization of Untrusted Data. CVSS score: 5.5/10. Published 2026-06-17.
How severe is CVE-2026-39578?
Medium severity. CVSS v3 base score is 5.5 out of 10.