CVE-2023-47258 Cross-site scripting in n/a

Medium 6.1 Published 5 Nov 2023 Updated 5 Sep 2024

An attacker can inject malicious scripts via the Markdown formatter in Redmine, potentially leading to session hijacking or code execution.

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

What is CVE-2023-47258?

CVE-2023-47258 is a medium-severity cross-site scripting vulnerability in Redmine Redmine, published on 5 Nov 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Redmine before 4.2.11 and 5.0.x before 5.0.6 allows XSS in a Markdown formatter.

Weakness: CWE-79

Which versions are affected by CVE-2023-47258?

1 open source package ship an affected version, including redmine. It affects 1 product.

Package	Affected	Fixed in
`redmine` Bitnami	All versions	`4.2.11, 5.0.6`

Products include Redmine Redmine.

How do I fix CVE-2023-47258?

Upgrade redmine to a fixed version for your release line: 4.2.11 or 5.0.6.

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-2023-47258 being exploited?

There is no known exploitation of CVE-2023-47258 in the wild and no public exploit code.

All Redmine Redmine vulnerabilities

Sources

Also known as BIT-redmine-2023-47258, DEBIAN-CVE-2023-47258, GHSA-rmx7-grxr-fhm3, UBUNTU-CVE-2023-47258.