CVE-2026-25031
Published: 25 March 2026
Summary
CVE-2026-25031 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 18.1th 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly requires timely identification, reporting, and patching of the deserialization flaw in Tasty Daily theme versions prior to 1.27 to prevent object injection and code execution.
Mandates validation of untrusted data inputs before deserialization, directly mitigating object injection in the vulnerable WordPress theme.
Deploys malicious code protection mechanisms to block or detect arbitrary code execution resulting from successful deserialization exploits.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The unauthenticated remote deserialization flaw in a public-facing WordPress theme directly enables exploitation of a web application (T1190) and subsequent arbitrary code execution, commonly achieved by deploying or invoking a web shell (T1505.003).
NVD Description
Deserialization of Untrusted Data vulnerability in park_of_ideas Tasty Daily tastydaily allows Object Injection.This issue affects Tasty Daily: from n/a through < 1.27.
Deeper analysisAI
CVE-2026-25031 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the Tasty Daily WordPress theme developed by park_of_ideas, which enables object injection. The issue affects all versions of the tastydaily theme from n/a through those prior to 1.27. Published on 2026-03-25, it carries 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), indicating critical severity due to its potential for severe impacts across confidentiality, integrity, and availability.
Remote attackers require no privileges or user interaction to exploit this vulnerability over the network with low complexity. Successful exploitation allows attackers to inject malicious objects during deserialization, potentially leading to arbitrary code execution, data manipulation, or system compromise on affected WordPress sites running vulnerable theme versions.
Patchstack advisories detail the vulnerability in the Tasty Daily theme and recommend updating to version 1.27 or later, where the object injection flaw is addressed. No additional mitigations are specified in the provided references.
Details
- CWE(s)