Simple Lightbox

Simple Lightbox has one disclosed vulnerability in the WordSec catalog, all reported in 2025; it is fixed as of September 2026. Their average CVSS score is 6.4, and the most serious one scores 6.4 out of 10.

The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).

The one issue recorded for Simple Lightbox has a vendor fix available, so running the current release closes it.

All of these findings were reported by Pierre Rudloff. Simple Lightbox is installed on roughly 100,000 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 6.9.7.

Strategic Overview

Avg CVSSMedium

6.4/ 10

Patch Coverage100%

Open

Fixed

Get automatic notifications for all Simple Lightbox vulnerabilities before they are exploited.

Highest severity on recordCVSS 6.4CVE-2025-3516

Simple Lightbox <= 2.9.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

Read the full analysis

Vulnerability Records

1 records


2025-04-25 00:00	Simple Lightbox <= 2.9.3 - Authenticated (Contributor+) Stored Cross-Site Scripting Simple Lightbox <= 2.9.3	`CVE-2025-3516`	6.4 Medium	Pierre Rudloff	Yes

Showing 1–1 of 1 reports

Plugin Profile

Latestv2.9.5

Simple Lightbox

Author

Archetyped

4.3(241)

86/100

Last Updated

2026-02-24 (7mo ago)

Active Installs

100,000+

Downloads

3,035,335

Requires WP

5.3+

Requires PHP

5.6.20+

Tested up to

WP 6.9.7

Created

2010-05-29 (17y ago)

Simple Lightbox is a very simple and customizable lightbox that is easy to add to your WordPress website. Features Options for customizing the lightbox behavior are located in the Appearance > Lightbox admin menu (or just click the Settings link below the plugin’s name when viewing the list of installed plugins) Automatically activate links (no manual coding required) Automatically resize lightbox to fit in window Customize lightbox with themes Mobile-optimized responsive themes included Customizable lightbox animations Infinitely customizable with add-ons Supports WordPress image attachment links Supports links in widgets Keyboard Navigation Display media metadata (caption, description, etc.) in lightbox Enable Lightbox depending on Page Type (Home, Pages, Archive, etc.) Group image links (play as a slideshow) Group image links by Post (separate slideshow for each post on page) Usage Insert links to images/image attachments into your posts/pages That’s it! The image will be displayed in a lightbox automatically. For more usage tips, go to Simple Lightbox’s official page See Simple Lightbox’s documentation for in-depth information on using and customizing SLB.

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