CVE-2026-95597 in Pgall for WooCommerce Plugin
Summary
by MITRE • 10/09/2026
Missing Authorization vulnerability in codemstory 워드프레스 결제 심플페이 pgall-for-woocommerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects 워드프레스 결제 심플페이: from n/a through 5.5.17.
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Analysis
by VulDB Data Team • 10/09/2026
The identified security flaw resides within the Simple Pay PGAll for WooCommerce plugin, a widely utilized extension for WordPress e-commerce sites that facilitates payment processing via various gateways. This vulnerability is classified as an Access Control issue where the application fails to properly enforce authorization checks on specific administrative or sensitive endpoints. Specifically, the software allows unauthenticated users or those with insufficient privileges to access functions intended only for authorized administrators. The affected versions span from the initial release up through version 5.5.17, indicating a long-standing oversight in the plugin's security architecture that has persisted across multiple updates without adequate remediation.
From a technical perspective, this vulnerability stems from missing authorization checks on API endpoints or administrative actions within the plugin codebase. In typical WordPress plugins, sensitive operations such as modifying payment gateway settings, viewing transaction logs, or executing configuration changes should require both authentication and explicit capability verification using functions like current_user_can(). However, in this instance, these safeguards are either absent or incorrectly implemented. This allows an attacker to craft specific HTTP requests that bypass the intended access control mechanisms. By exploiting this misconfiguration, a remote actor can interact with administrative features without valid credentials, effectively elevating their privileges within the WordPress environment.
The operational impact of this vulnerability is severe for any organization relying on Simple Pay PGAll for WooCommerce to manage online transactions. An attacker who successfully exploits this flaw gains unauthorized access to sensitive administrative functions. This could lead to the modification of payment gateway configurations, potentially redirecting funds or altering transaction routing rules. Furthermore, depending on the specific endpoints exposed, an attacker might be able to view confidential customer data, including order details and personal information stored in the WooCommerce database. In more complex scenarios involving other vulnerabilities or chained attacks, this access could serve as a foothold for further compromise of the underlying server infrastructure, leading to complete site takeover or data exfiltration.
This vulnerability aligns with CWE-284, which describes Improper Access Control, and specifically relates to CWE-862, Missing Authorization. In terms of offensive security frameworks, this behavior corresponds to MITRE ATT&CK technique T1078, Valid Accounts, as it allows an attacker to operate under the guise of a legitimate user or bypass authentication entirely to perform administrative tasks. It also touches upon T1548, Abuse Elevation Control Mechanism, if the exploitation leads to privilege escalation within the application layer. The lack of proper checks represents a fundamental failure in implementing secure design principles, particularly regarding the principle of least privilege and defense-in-depth strategies for web applications.
To mitigate this risk, immediate action is required by all administrators using versions of Simple Pay PGAll for WooCommerce up to 5.5.17. The primary remediation step is to update the plugin to the latest available version released after 5.5.17, where the vendor has presumably addressed these access control deficiencies. If updating is not immediately feasible due to compatibility constraints with other site plugins or themes, administrators should consider disabling the plugin entirely until a patch can be applied. Additionally, implementing Web Application Firewall rules that monitor for unusual patterns of administrative requests from unauthenticated sources can provide an additional layer of defense. Regular security audits and penetration testing focused on access control mechanisms are recommended to identify similar flaws in other custom or third-party plugins before they can be exploited by malicious actors.