High severity · published Jun 16, 2026
CVE-2026-39554
WordPress Fidalgo theme <= 1.2.2 - PHP Object Injection vulnerability
8.1
CVSS
0.3%
EPSS
No
On KEV
Description
Unauthenticated PHP Object Injection in Fidalgo <= 1.2.2 versions.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Fidalgo · Elated-Themes
through 1.2.2 · source: vendor