CVE-2023-50727 Resque vulnerable to reflected XSS in Queue Endpoint

Medium 6.3 Published Updated

Attackers can execute arbitrary JavaScript in the context of other users via a reflected XSS vulnerability in the Resque queue endpoint.

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-2023-50727?

CVE-2023-50727 is a medium-severity cross-site scripting vulnerability in resque, published on 22 Dec 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later. Reflected XSS issue occurs when /queues is appended with /"><svg%20onload=alert(domain)>. This issue has been patched in version 2.6.0.

Weakness: CWE-79

Which versions are affected by CVE-2023-50727?

2 open source packages ship an affected version, including resque. It affects 1 product.

PackageAffectedFixed in
resque RubyGemsAll versions2.6.0
resque RubyGemsAll versions2.6.0

Products include Resque Resque.

How do I fix CVE-2023-50727?

Upgrade resque to 2.6.0 or later.

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-2023-50727 being exploited?

There is no known exploitation of CVE-2023-50727 in the wild and no public exploit code.

Sources

Also known as GHSA-r9mq-m72x-257g.

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