How severe is CVE-2025-53303?

CVE-2025-53303 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-2025-53303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53303?

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-2025-53303 have an EU (EUVD) identifier?

Yes. CVE-2025-53303 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27459.

When was CVE-2025-53303 published?

CVE-2025-53303 was published on 2025-09-09 and last updated on 2026-06-17.

CVE-2025-53303

CVE-2025-53303 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% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27459
Weakness: CWE-502
Published: 2025-09-09
Last modified: 2026-06-17

Description

Deserialization of Untrusted Data vulnerability in ThemeMove ThemeMove Core thememove-core allows Object Injection.This issue affects ThemeMove Core: from n/a through <= 1.4.2.

Frequently asked questions

What is CVE-2025-53303?: Deserialization of Untrusted Data vulnerability in ThemeMove ThemeMove Core thememove-core allows Object Injection.This issue affects ThemeMove Core: from n/a through <= 1.4.2.
How severe is CVE-2025-53303?: CVE-2025-53303 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-2025-53303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-53303?: 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-2025-53303 have an EU (EUVD) identifier?: Yes. CVE-2025-53303 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27459.
When was CVE-2025-53303 published?: CVE-2025-53303 was published on 2025-09-09 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/thememove-core/vulnerability/wordpress-thememove-core-plugin-1-4-2-php-object-injection-vulnerability?_s_id=cve

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