Missing Authorization vulnerability in Easy Social Feed Easy Social Feed allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Easy Social Feed: from n/a through 6.5.1.

Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled FancyBox JavaScript library (versions 1.3.4 to 3.5.7) in various versions 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 Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Easy Social Feed WordPress plugin before 6.5.6 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admin

Cross-Site Request Forgery (CSRF) vulnerability in Easy Social Feed.This issue affects Easy Social Feed: from n/a through 6.5.6.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Easy Social Feed allows Stored XSS.This issue affects Easy Social Feed: from n/a through 6.5.3.

The Easy Social Feed – Social Photos Gallery – Post Feed – Like Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'efb_likebox' shortcode in all versions up to, and including, 6.5.4 due to insufficient input sanitization and output escaping on 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 Easy Social Feed – Social Photos Gallery – Post Feed – Like Box plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.5.4. This is due to missing or incorrect nonce validation on the save_groups_list function. This makes it possible for unauthenticated attackers to disconnect a site's facebook or instagram page/group connection via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Easy Social Feed – Social Photos Gallery – Post Feed – Like Box plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.5.4. This is due to missing or incorrect nonce validation on the esf_insta_save_access_token and efbl_save_facebook_access_token functions. This makes it possible for unauthenticated attackers to connect their facebook and instagram pages to the site via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Easy Social Feed plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on multiple AJAX functions in all versions up to, and including, 6.5.2. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform unauthorized actions, such as modifying the plugin's Facebook and Instagram access tokens and updating group IDs.