Is Responsive Lightbox & Gallery safe? Known vulnerabilities and latest version

The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 2.7.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the plugin's 'Comments' lightbox setting to be enabled (disabled by default), a moderator to approve the injected comment, and a site visitor to click the affected image to open the lightbox.

Unauthenticated Cross Site Scripting (XSS) in Responsive Lightbox <= 2.7.6 versions.

The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of `strpos()` for substring-based hostname validation instead of strict host comparison in the `ajax_upload_image()` function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.

The Responsive Lightbox & Gallery WordPress plugin before 2.6.1 is vulnerable to an Unauthenticated Stored-XSS attack due to flawed regex replacement rules that can be abused by posting a comment with a malicious link when lightbox for comments are enabled and then approved.

The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.5.3 via the 'get_image_size_by_url' function. This is due to insufficient validation of user-supplied URLs when determining image dimensions for gallery items. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application which can be used to query and modify information from internal services.

The Responsive Lightbox & Gallery WordPress plugin before 2.5.3 does not properly handle HTML tag attributes modifications, potentially allowing unauthenticated attackers to abuse the functionality to include event handlers and conduct Stored XSS attacks.

The Responsive Lightbox & Gallery WordPress plugin before 2.5.2 use the Swipebox library which does not validate and escape title attributes before outputting them back in a page/post where used, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

The Responsive Lightbox & Gallery WordPress plugin before 2.5.1 does not validate and escape some of its attributes before outputting them back in a page/post, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled Featherlight.js JavaScript library (versions 1.7.13 to 1.7.14) 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.

Missing Authorization vulnerability in dFactory Responsive Lightbox allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Responsive Lightbox: from n/a through 2.4.7.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dFactory Responsive Lightbox responsive-lightbox allows Stored XSS.This issue affects Responsive Lightbox: from n/a through <= 2.4.8.

The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via file uploads in all versions up to, and including, 2.4.7 due to insufficient input sanitization and output escaping affecting the rl_upload_image AJAX endpoint. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the 3gp2 file.

Missing Authorization vulnerability in dFactory Responsive Lightbox.This issue affects Responsive Lightbox: from n/a through 2.4.6.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dFactory Responsive Lightbox & Gallery allows Stored XSS.This issue affects Responsive Lightbox & Gallery: from n/a through 2.4.5.

Cross-site scripting vulnerability in Responsive Lightbox prior to version 1.7.2 allows an attacker to inject arbitrary web script or HTML via unspecified vectors.