Missing Authorization in Open Shop Theme

Executive Summary

The WordPress Open Shop Theme, versions 1.7.1 and earlier, contains a Broken Access Control vulnerability (CVE-2026-57405). This vulnerability arises from missing authorization, authentication, or nonce token checks, which allows unprivileged users to perform actions that should require higher privileges.

Essentially, the theme incorrectly configures access control security levels, enabling attackers to exploit these weaknesses and gain unauthorized access or perform unauthorized actions.

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Impact Analysis

This vulnerability can allow attackers with low privileges to escalate their access and perform higher-privileged actions on websites using the affected Open Shop theme versions. This can lead to unauthorized modifications, potential disruption of services, or other harmful impacts.

Because the vulnerability is moderately dangerous and can be exploited in mass campaigns targeting thousands of websites, it poses a significant risk to affected sites.

Immediate action is recommended, such as updating the theme to version 1.7.2 or later, or applying mitigation rules provided by Patchstack to block attacks until the update is applied.

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Mitigation Strategies

Immediate action is recommended to mitigate the vulnerability in the WordPress Open Shop Theme versions 1.7.1 and earlier.

• Update the theme to version 1.7.2 or later.
• If updating is not possible, seek assistance from your hosting provider or web developer.
• Apply the mitigation rule provided by Patchstack to block attacks until the update is applied.

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