Thrunobulax

Description
This plugin was born out of an explicable problem with the standard 
Wordpress RSS widget on my server. Whether a curl problem within 
fetch_feed() or something else, this plugin now uses DOM to load 
the feeds rather than curl. If you’re getting the “An error has 
occurred; the feed is probably down. Try again later.” message (and 
you are sure that your feed is valid (validate with 
feedvalidator.org) try this plugin.
Installation
<ol>
<li>Upload the <code>mob-rss-widget</code>-folder to the <code>/wp-content/plugins/</code> 
directory</li>
<li>Activate the plugin through the ‘Plugins’ menu in WordPress</li>
</ol>
How to Use
Drag and drop the widget into your sidebar in the Widgets menu
Changelog
1.0.0 Release.

MOBy RSS Widget

Description This plugin was born out of an explicable problem with the standard Wordpress RSS widget on my server. Whether a curl problem within fe …

zackdesign

RSS Image Widget fetches images from any RSS/Atom feed that uses enclosures and displays them in a responsive grid with a built-in lightbox. Works as both a classic widget and a Gutenberg block.
Features:
<ul>
<li>Widget + Block — Use in sidebars (classic widget) or anywhere in the block editor</li>
<li>Lightweight — No jQuery, no external CDN. Just a tiny vanilla JS lightbox (~2 KB)</li>
<li>Responsive grid — CSS Grid layout adapts to any container width</li>
<li>Lazy loading — Images use native browser lazy loading</li>
<li>Accessible — Lightbox supports keyboard navigation (Escape to close)</li>
<li>Zero configuration — Just add a feed URL and go</li>
</ul>
Upgrading from v2.x:
The Bootstrap classes (<code>row</code>, <code>col-xs-12</code>) and external Lightbox2 CDN have been replaced with clean semantic HTML, a responsive CSS Grid layout, and a bundled vanilla JS lightbox. If you had custom CSS targeting the old classes, you will need to update it to use the new <code>.rss-image-gallery</code> BEM classes.

RSS Image Widget

Display images from an RSS or Atom feed as a widget or block with a lightweight lightbox gallery.

MOBy RSS Widget vs RSS Image Widget