CVE-2025-27088 HIGH

CVE-2025-27088: Reflected Cross-site Scripting (XSS) in template implementation in oxyno-zeta/s3-proxy

Vendor Oxyno-Zeta
Product s3-proxy
Weakness CWE-79 · XSS
Published February 20, 2025
Last update February 21, 2025

CVSS base score

8.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N

What the vulnerability does

01Description

oxyno-zeta/s3-proxy is an aws s3 proxy written in go. In affected versions a Reflected Cross-site Scripting (XSS) vulnerability enables attackers to create malicious URLs that, when visited, inject scripts into the web application. This can lead to session hijacking or phishing attacks on a trusted domain, posing a moderate risk to all users. It's possible to inject html elements, including scripts through the folder-list template. The affected template allows users to interact with the URL path provided by the `Request.URL.Path` variable, which is then rendered directly into the HTML without proper sanitization or escaping. This can be abused by attackers who craft a malicious URL containing injected HTML or JavaScript. When users visit such a URL, the malicious script will be executed in the user's context. This issue has been addressed in version 4.18.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Key dates

02Disclosure timeline

February 20, 2025 CVE published
February 21, 2025 Record updated

Related vulnerabilities

04Related CVE