CVE-2025-66527: 
WordPress vulnerability analysis and mitigation

CVE-2025-66527 is a Missing Authorization (Broken Access Control) vulnerability in the VanKarWai Lobo WordPress theme that allows authenticated attackers with low privileges (Subscriber level) to exploit incorrectly configured access control security levels. It affects all versions of the Lobo theme through 2.8.6, with version 2.8.7 containing the fix. The vulnerability was reported on October 15, 2025, and published on November 14, 2025. It carries a CVSS v3.1 base score of 4.3 (Medium) (Patchstack).

The vulnerability is classified as CWE-862 (Missing Authorization), meaning the theme fails to perform adequate authorization checks before executing certain privileged actions. An authenticated attacker with Subscriber-level access can invoke functions that should be restricted to higher-privileged roles, exploiting the incorrectly configured access control. The attack vector is network-based, requires low privileges, no user interaction, and has low attack complexity. No public proof-of-concept code or detailed technical write-up has been published (Patchstack).

Successful exploitation results in a limited availability impact, with no confidentiality or integrity impact according to the CVSS scoring. An authenticated low-privileged user (e.g., a WordPress Subscriber) could perform actions beyond their intended permission level within the affected WordPress site. The scope is unchanged, meaning the impact is confined to the vulnerable component and does not facilitate lateral movement or significant data exposure (Patchstack).

There is no known public exploit code, active in-the-wild exploitation, or threat actor attribution associated with CVE-2025-66527. The EPSS score is approximately 0.017% (0.000170), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patchstack classifies this as low priority with no impactful threat, though it notes that vulnerabilities of this class can be used in mass-exploit campaigns targeting WordPress sites (Patchstack).

The vendor has released a patched version of the Lobo WordPress theme. The primary remediation is to update to version 2.8.7 or later, which resolves the missing authorization issue. Site administrators unable to update immediately should consider restricting user registration or Subscriber-level access until the patch can be applied, and consult their hosting provider or web developer for assistance (Patchstack).

The vulnerability was discovered and reported by Tran Nguyen Bao Khanh of VCI - VNPT Cyber Immunity on October 15, 2025, and disclosed by Patchstack on November 14, 2025. Patchstack characterizes the issue as low severity with unlikely exploitation impact. No significant broader media coverage or notable community commentary has been identified (Patchstack).