Executive Summary

CVE-2026-25454 is a medium severity Broken Access Control vulnerability affecting the WordPress The League Theme versions up to and including 4.4.1.

The issue arises from missing authorization, authentication, or nonce token checks in certain functions, which allows unprivileged users, such as subscribers or developers, to perform actions that should be reserved for higher privileged roles.

This vulnerability is classified under the OWASP Top 10 category A1: Broken Access Control and has a CVSS score of 6.5, indicating a moderate risk.

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Impact Analysis

Because of the missing access control checks, unprivileged users can perform actions that should only be available to higher privileged roles.

This can lead to unauthorized changes or access within the affected WordPress site, potentially compromising site integrity, security, and user data.

The vulnerability is considered moderately dangerous and is likely to be targeted in mass-exploit campaigns affecting thousands of websites.

Immediate mitigation or resolution is strongly advised to prevent exploitation.

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Mitigation Strategies

To mitigate the CVE-2026-25454 vulnerability in The League WordPress theme, immediate steps include applying the mitigation rule issued by Patchstack that can block exploitation attempts until an official patch is released.

Additionally, it is strongly advised to seek assistance from hosting providers or web developers to implement proper access control measures and monitor for suspicious activity.

Since no official patch is currently available, these mitigations serve as temporary protections against exploitation.

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Compliance Impact

The vulnerability is a Broken Access Control issue that allows unprivileged users to perform actions reserved for higher privileged roles. Such unauthorized access can lead to improper handling or exposure of sensitive data.

While the provided information does not explicitly mention compliance with standards like GDPR or HIPAA, broken access control vulnerabilities generally pose risks to data confidentiality and integrity, which are critical requirements under these regulations.

Therefore, if exploited, this vulnerability could potentially lead to non-compliance with data protection regulations by enabling unauthorized access to protected information.

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Detection Guidance

CVE-2026-25454 is a Broken Access Control vulnerability in The League WordPress theme up to version 4.4.1, allowing unprivileged users to perform actions reserved for higher privileged roles. Detection involves checking for unauthorized access attempts or privilege escalations related to this theme.

Since the vulnerability requires at least subscriber-level privileges to exploit, monitoring logs for suspicious activity from subscriber accounts or unusual requests targeting The League theme endpoints can help detect exploitation attempts.

No specific detection commands are provided in the available resources. However, general approaches include:

• Review web server access logs for unusual POST or GET requests to The League theme files or admin functions.
• Use WordPress security plugins or monitoring tools to audit user actions and privilege escalations.
• Apply Patchstack’s mitigation rule to block exploitation attempts and monitor if any blocked attempts occur.

For command-line detection, administrators might use commands like grep to search logs for suspicious activity, for example:

• grep -i 'the-league' /var/log/apache2/access.log
• grep -i 'POST' /var/log/apache2/access.log | grep 'wp-admin' or theme-related paths

However, no official or specific commands for detecting this vulnerability are documented in the provided resources.

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