Cyber Resilience

CVE-2026-27082

CriticalRCE

Published: 25 March 2026

Published
25 March 2026
Modified
24 April 2026
KEV Added
—
Patch
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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-2026-27082 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 SI-2 (Flaw Remediation) and SC-7 (Boundary Protection).

Deeper analysis

CVE-2026-27082 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the ThemeREX Love Story WordPress theme, known as lovestory, that enables Object Injection. Published on 2026-03-25, it affects the theme from unknown initial versions through 1.3.12, earning a CVSS v3.1 base score of 9.8 due to its critical severity.

Unauthenticated attackers can exploit this vulnerability over the network with low complexity and no user interaction required (AV:N/AC:L/PR:N/UI:N/S:U). Successful exploitation grants high-impact access to confidentiality, integrity, and availability (C:H/I:H/A:H), potentially allowing arbitrary object injection in PHP, which could lead to remote code execution or other severe compromises depending on available gadgets.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/lovestory/vulnerability/wordpress-love-story-theme-1-3-12-php-object-injection-vulnerability?_s_id=cve provides details on this PHP Object Injection issue in Love Story theme version 1.3.12. Practitioners should review it for specific mitigation guidance, including any available patches or workarounds for affected installations.

OWASP Top 10 for Web (2025)

A08:2025 Software or Data Integrity Failures

EU & UK References

Vulnerability details

Deserialization of Untrusted Data vulnerability in ThemeREX Love Story lovestory allows Object Injection.This issue affects Love Story: from n/a through <= 1.3.12.

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 →
Why these techniques?

Unauthenticated remote deserialization/object injection in a public-facing WordPress theme directly matches the vector for T1190 Exploit Public-Facing Application, enabling RCE with no other prerequisites.

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

CVEs Like This One

CVE-2025-62368Shared CWE-502
CVE-2025-68903Shared CWE-502
CVE-2025-67911Shared CWE-502
CVE-2025-54014Shared CWE-502
CVE-2026-22505Shared CWE-502
CVE-2025-53078Shared CWE-502
CVE-2026-43633Shared CWE-502
CVE-2025-60039Shared CWE-502
CVE-2026-25429Shared CWE-502
CVE-2025-7697Shared CWE-502

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Timely flaw remediation through patching the vulnerable Love Story WordPress theme versions comprehensively eliminates the deserialization of untrusted data vulnerability.

SI-10 Information Input Validation partial match
prevent

Information input validation ensures untrusted data is checked and sanitized before deserialization, mitigating object injection in the theme.

SC-7 Boundary Protection partial match
preventdetect

Boundary protection at network interfaces, such as web application firewalls, inspects and blocks exploitation attempts of the unauthenticated deserialization vulnerability.

References