CVE-2026-25029

CriticalRCE

Published: 25 March 2026

Published

25 March 2026

Modified

24 April 2026

KEV Added

—

Patch

—

CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0037 29.2th percentile

Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-25029 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 29.2th 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 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2026-25029 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the park_of_ideas KIDZ WordPress theme, which allows Object Injection. The issue affects KIDZ versions from n/a through 5.24 and was published on 2026-03-25.

With a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), the vulnerability can be exploited by unauthenticated remote attackers requiring low complexity and no user interaction. Successful exploitation enables high-impact compromise of confidentiality, integrity, and availability.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/kidz/vulnerability/wordpress-kidz-theme-5-24-php-object-injection-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-15625

Vulnerability details

Deserialization of Untrusted Data vulnerability in park_of_ideas KIDZ kidz allows Object Injection.This issue affects KIDZ: from n/a through <= 5.24.

CWE(s): CWE-502

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1505.003 Web Shell Persistence

Adversaries may backdoor web servers with web shells to establish persistent access to systems.

attack.mitre.org →

Why these techniques?

Unauthenticated remote deserialization/object injection in a public-facing WordPress theme directly enables T1190 (Exploit Public-Facing Application) and commonly results in arbitrary PHP execution via web shell deployment (T1100).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0