Cyber Resilience

CVE-2026-27083

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-2026-27083 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-2026-27083 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the ThemeREX Work & Travel Company WordPress theme, enabling Object Injection. The issue affects the Work & Travel Company theme from n/a through version 1.2 inclusive. It carries a CVSS v3.1 base score of 9.8, reflecting its critical severity.

An unauthenticated remote attacker (AV:N/AC:L/PR:N/UI:N) can exploit this vulnerability over the network with low complexity and no user interaction. Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability (C:H/I:H/A:H), potentially leading to arbitrary code execution or other severe outcomes via malicious object deserialization.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/work-travel-company/vulnerability/wordpress-work-travel-company-theme-1-2-php-object-injection-vulnerability?_s_id=cve.

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 Work & Travel Company work-travel-company allows Object Injection.This issue affects Work & Travel Company: from n/a through <= 1.2.

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/RCE in public-facing WordPress theme directly matches exploitation of a public-facing application for initial access.

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

Directly remediates the deserialization of untrusted data flaw in the Work & Travel Company WordPress theme by requiring timely application of patches from advisories like Patchstack.

SI-10 Information Input Validation good match
prevent

Prevents object injection by validating and sanitizing untrusted inputs prior to deserialization in the vulnerable theme.

RA-5 Vulnerability Monitoring and Scanning good match
detect

Identifies the presence of CVE-2026-27083 through vulnerability scanning of WordPress themes and components.

References