Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
7DescriptionCVE.org
Deserialization of Untrusted Data vulnerability in park_of_ideas Ricky ricky allows Object Injection.This issue affects Ricky: from n/a through < 2.31.
AnalysisAI
A deserialization of untrusted data vulnerability exists in the park_of_ideas Ricky theme (all versions prior to 2.31) that allows object injection attacks. An attacker can inject malicious serialized PHP objects to achieve arbitrary code execution or data manipulation. While no CVSS score or EPSS data is currently available and KEV status is unknown, the CWE-502 classification indicates a critical deserialization flaw that typically requires network access but no authentication.
Technical ContextAI
The vulnerability resides in the Ricky WordPress theme (CPE: cpe:2.3:a:park_of_ideas:ricky:*:*:*:*:*:*:*:*), which is a widely distributed WordPress theme component. The root cause is CWE-502 (Deserialization of Untrusted Data), a classic PHP vulnerability where user-supplied input is passed to PHP's unserialize() function without validation. This allows attackers to instantiate arbitrary classes and invoke magic methods (__wakeup, __destruct, __toString, etc.) to chain gadgets and achieve object injection. WordPress themes often handle serialized data in custom post meta, plugin options, or request parameters, making this attack surface particularly relevant in the WordPress ecosystem.
RemediationAI
Immediately upgrade the Ricky theme to version 2.31 or later via the WordPress theme management dashboard or direct download from the park_of_ideas repository. Until patching is feasible, implement input validation and sanitization at the application level to reject or escape any unserialize() calls on untrusted data; consider using JSON as a safer serialization alternative. Additionally, restrict file upload permissions, disable dangerous PHP functions (if possible), and apply Web Application Firewall (WAF) rules to detect and block serialized object patterns in request payloads. Monitor the Patchstack advisory at https://patchstack.com/ for confirmation of patch availability and additional hardening guidance.
Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-15632