How severe is CVE-2026-56055?

CVE-2026-56055 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-56055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-56055?

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.

When was CVE-2026-56055 published?

CVE-2026-56055 was published on 2026-06-26.

CVE-2026-56055

CVE-2026-56055 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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 8.8)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Published: 2026-06-26
Last modified: 2026-06-26

Description

Subscriber PHP Object Injection in RealHomes <= 4.5.3 versions.

Frequently asked questions

What is CVE-2026-56055?: Subscriber PHP Object Injection in RealHomes <= 4.5.3 versions.
How severe is CVE-2026-56055?: CVE-2026-56055 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-56055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-56055?: 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.
When was CVE-2026-56055 published?: CVE-2026-56055 was published on 2026-06-26.

References

https://patchstack.com/database/wordpress/theme/realhomes/vulnerability/wordpress-realhomes-theme-4-5-3-php-object-injection-vulnerability?_s_id=cve

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