How severe is CVE-2026-40756?

CVE-2026-40756 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40756 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40756?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40756 have an EU (EUVD) identifier?

Yes. CVE-2026-40756 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37696.

When was CVE-2026-40756 published?

CVE-2026-40756 was published on 2026-06-17.

CVE-2026-40756

CVE-2026-40756 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37696
Weakness: CWE-502
Published: 2026-06-17
Last modified: 2026-06-17

Description

Unauthenticated PHP Object Injection in Zoya <= 1.4 versions.

Frequently asked questions

What is CVE-2026-40756?: Unauthenticated PHP Object Injection in Zoya <= 1.4 versions.
How severe is CVE-2026-40756?: CVE-2026-40756 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40756 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40756?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40756 have an EU (EUVD) identifier?: Yes. CVE-2026-40756 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37696.
When was CVE-2026-40756 published?: CVE-2026-40756 was published on 2026-06-17.

References

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

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