CVE-2026-40754: WordPress Roisin theme <= 1.4 - PHP Object Injection vulnerability

High severity · published Jun 16, 2026

CVE-2026-40754

WordPress Roisin theme <= 1.4 - PHP Object Injection vulnerability

8.1

CVSS

0.2%

EPSS

On KEV

Description

Unauthenticated PHP Object Injection in Roisin <= 1.4 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)0.2% · higher than 16% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Roisin · Elated-Themes

through 1.4 · source: vendor

Affected product

Roisin

Elated-Themes

All Roisin CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-40754

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-40754

patchstack.com

https://patchstack.com/database/wordpress/theme/roisin/vulnerability/wordpress-roisin-theme-1-4-php-object-injection-vulnerability?_s_id=cve