CVE-2025-67619
Published: 22 January 2026
Summary
CVE-2025-67619 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 39.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2025-67619 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the Kids Heaven (also known as kids-world) WordPress theme developed by designthemes. The flaw enables Object Injection and affects all versions of the theme from unknown initial release through 3.2 inclusive. Published on 2026-01-22, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact.
The vulnerability can be exploited by attackers with low privileges, such as authenticated users, over the network with low attack complexity and no user interaction required. Successful exploitation allows high impacts on confidentiality, integrity, and availability, typically through arbitrary object injection in PHP, which could enable remote code execution or other severe compromises on affected WordPress sites.
Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/kids-world/vulnerability/wordpress-kids-heaven-theme-3-2-php-object-injection-vulnerability?_s_id=cve, which documents the issue specific to the Kids Heaven theme version 3.2.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-4072
Vulnerability details
Deserialization of Untrusted Data vulnerability in designthemes Kids Heaven kids-world allows Object Injection.This issue affects Kids Heaven: from n/a through <= 3.2.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct mapping of unauthenticated network-exploitable deserialization/RCE flaw in public-facing WordPress theme to T1190 Exploit Public-Facing Application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents deserialization of untrusted data by requiring validation of all inputs prior to processing, addressing the core CWE-502 vulnerability in the Kids Heaven theme.
Mandates timely flaw remediation, such as patching the Kids Heaven theme up to version 3.2, to eliminate the object injection vulnerability.
Implements memory protections like non-executable memory and ASLR to mitigate remote code execution resulting from successful object injection via deserialization.