Is Master Slider safe? Known vulnerabilities and latest version

The Master Slider WordPress plugin through 3.11.2 does not sanitise and escape some of its shortcode attributes before outputting them in an inline script context, which could allow users with the Contributor role and above to perform Stored Cross-Site Scripting attacks that execute when the affected post is viewed. No fixed version is available. Until one ships, restrict the Contributor role to trusted users, or deactivate the Master Slider WordPress plugin through 3.11.2. Site owners who need to keep it active can block the ms_slider shortcode for roles below Editor, for example with a shortcode-restriction Master Slider WordPress plugin through 3.11.2, which prevents the attack without removing the Master Slider WordPress plugin through 3.11.2.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Averta Master Slider master-slider allows Reflected XSS.This issue affects Master Slider: from n/a through 3.11.5.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Averta Master Slider allows DOM-Based XSS. This issue affects Master Slider: from n/a through 3.10.8.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in averta Master Slider master-slider allows Stored XSS.This issue affects Master Slider: from n/a through <= 3.11.0.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's masterslider_pb and ms_slide shortcodes in all versions up to, and including, 3.10.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Missing Authorization vulnerability in averta Master Slider master-slider.This issue affects Master Slider: from n/a through <= 3.11.0.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ms_layer shortcode in all versions up to, and including, 3.10.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ms_slider shortcode in all versions up to, and including, 3.10.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This issue was partially fixed in version 3.10.8.

The Master Slider WordPress plugin before 3.10.5 does not sanitise and escape some of its settings, which could allow high privilege users such as Editor and above to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

During testing of the Master Slider WordPress plugin through 3.9.10, a CSRF vulnerability was found, which allows an unauthorized user to manipulate requests on behalf of the victim and thereby delete all of the sliders inside Master Slider WordPress plugin through 3.9.10.

Cross Site Scripting (XSS) vulnerability in Averta Master Slider allows Reflected XSS.This issue affects Master Slider: from n/a through 3.10.0.

Cross-Site Request Forgery (CSRF) vulnerability in Averta Master Slider.This issue affects Master Slider: from n/a through 3.9.10.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ms_layer' shortcode in all versions up to, and including, 3.9.10 due to insufficient input sanitization and output escaping on the 'css_id' user supplied attribute. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. e CVE-2024-37222 may be a duplicate of this issue.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ms_slide' shortcode in all versions up to, and including, 3.9.9 due to insufficient input sanitization and output escaping on user supplied 'css_class' attribute. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ms_slide_info' shortcode in all versions up to, and including, 3.9.9 due to insufficient input sanitization and output escaping on user supplied 'tag_name' attribute. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Deserialization of Untrusted Data vulnerability in Averta Master Slider.This issue affects Master Slider: from n/a through 3.9.5.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Averta Master Slider allows Stored XSS.This issue affects Master Slider: from n/a through 3.9.8.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the slides callback functionality in all versions up to, and including, 3.9.9. This makes it possible for authenticated attackers, with editor-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ms_slide shortcode in all versions up to, and including, 3.9.10 due to insufficient input sanitization and output escaping on the 'src' user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.9.10. This is due to missing or incorrect nonce validation on the 'process_bulk_action' function. This makes it possible for unauthenticated attackers to duplicate or delete arbitrary sliders via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE-2023-50900 and CVE-2024-6490 may be a duplicate of this issue.