Security Advisory 2025-04

Feb 10, 2025 ยท Vulnerability/Stored XSS Severity/low CVSS/1.8
Summary XSS in Octopus Deploy error page
Advisory Number 2025-04
Discovery Date 18 NOV 2024
Patch Release Date 03 DEC 2024
Advisory Release Date 10 FEB 2025
Product Octopus Server
Operating System Linux and Microsoft Windows
Severity Low
CVE ID CVE-2025-0513

Customers who have downloaded and installed any of the Octopus Server versions listed below ("Details") are affected.

Please upgrade your Octopus Server immediately to fix this vulnerability.

Customers who have upgraded Octopus Server to version 2024.4.7132 or higher are not affected.

Severity

Octopus Deploy has given this vulnerability a Low rating. This rating was given according to the Octopus Deploy severity levels, which ranks vulnerabilities as critical, high, medium, or low severity.

This is our assessment and you should evaluate its applicability to your own environment.

Details

In affected versions of Octopus Server error messages were handled unsafely on the error page. If an adversary could control any part of the error message they could embed code which may impact the user viewing the error message.

The versions of Octopus Server affected by this vulnerability are:

  • All 2024.3.x versions before 2024.3.12985
  • All 2024.4.x versions before 2024.4.6962

Fix

To address this vulnerability, we have released Octopus Server version:

  • 2024.4.6962
  • 2024.3.12985

The latest versions of Octopus Deploy products can be downloaded from https://octopus.com/downloads and previous versions can be downloaded from https://octopus.com/downloads/previous

What You Need to Do

Octopus Deploy recommends that you upgrade to the latest version (2024.4.7132). You can download the latest version of Octopus Server from https://octopus.com/downloads

If you can't upgrade to the latest version (2024.4.7132):

If you have feature version... ...then upgrade to this version
2024.3.x 2024.3.12985 or greater
2024.4.x 2024.4.6962 or greater

Mitigation

There is no known mitigation for CVE-2025-0513, it is important to upgrade to a fixed version as soon as possible.

Support

If you have any questions or concerns regarding this advisory, please contact our support team https://octopus.com/support.

Exploitation and Public Announcements

The Octopus Deploy security team is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Source

This vulnerability was found by Edward Prior (@JankhJankh)