Exposure of Sensitive Information in 24liveblog WordPress Plugin

Executive Summary

The 24liveblog WordPress plugin (up to version 2.2) has a vulnerability where sensitive integration secrets are exposed to users with contributor-level access or higher.

This happens because the function lb24_block_enqueue_scripts() is hooked to enqueue_block_editor_assets and, for non-administrator users, it loads administrator-configured 24liveblog credentials from the options table and exposes them via JavaScript on the block editor page.

As a result, authenticated attackers with contributor or higher privileges can extract API tokens and other sensitive account credentials simply by opening the block editor and inspecting the page source.

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Impact Analysis

This vulnerability allows attackers with contributor-level access or above to obtain sensitive third-party 24liveblog account credentials, including API tokens and refresh tokens.

With these credentials, attackers could potentially misuse the 24liveblog integration, leading to unauthorized actions or data exposure related to the third-party service.

The CVSS score of 4.3 indicates a low to medium severity impact, primarily involving confidentiality loss without affecting integrity or availability.

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Detection Guidance

This vulnerability can be detected by verifying if the 24liveblog plugin version is up to and including 2.2 and by checking if sensitive 24liveblog integration secrets (lb24_token, lb24_refresh_token, lb24_uid, lb24_uname) are exposed in the block editor page source.

To detect exploitation, an authenticated user with contributor-level access or higher can open the WordPress block editor and inspect the page source for the presence of the JavaScript object lb24BlockData containing sensitive tokens.

No specific commands are provided in the available resources to detect this vulnerability on the network or system.

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Mitigation Strategies

Immediate mitigation steps include updating the 24liveblog plugin to a version later than 2.2 where this vulnerability is fixed.

Additionally, restrict contributor-level and higher user access to the block editor if possible, until the plugin is updated.

Review and rotate any exposed 24liveblog API tokens and refresh tokens to prevent unauthorized access.

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Compliance Impact

This vulnerability allows authenticated users with contributor-level access or higher to extract sensitive third-party 24liveblog account credentials, including API tokens and refresh tokens, by inspecting the block editor page source.

Exposure of such sensitive information could potentially lead to unauthorized access or misuse of data, which may impact compliance with data protection regulations such as GDPR or HIPAA that require safeguarding sensitive information.

However, the provided information does not explicitly state the direct impact on compliance with these standards.

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