CVE-2026-58591 Colorbox - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-069

Medium 5.4 Published 10 Jul 2026 Updated 13 Jul 2026

An attacker can inject malicious scripts into Drupal Colorbox module pages, potentially executing code in victim browsers.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2026-58591?

CVE-2026-58591 is a medium-severity cross-site scripting vulnerability in Drupal Colorbox, published on 10 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Colorbox allows Cross-Site Scripting (XSS). This issue affects Colorbox versions: from 0.0.0 to 2.1.5, from 0.0.0 to 2.2.0.

Weakness: CWE-79

Which versions are affected by CVE-2026-58591?

It affects 1 product.

Linux distribution packages (1)

drupal/colorbox Packagist:https://packages.drupal.org/8 All versions to 2.2.0 2.1.5

Products include Colorbox Project Colorbox.

How do I fix CVE-2026-58591?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-58591 being exploited?

There is no known exploitation of CVE-2026-58591 in the wild and no public exploit code.

Sources

Also known as DRUPAL-CONTRIB-2026-069, GHSA-xj92-p35c-g452.