XSS in Oxyno-zeta S3-proxy

CVE-2025-27088

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 ca…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (38.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-27088?
CVE-2025-27088 is a high-severity vulnerability in Oxyno-zeta S3-proxy, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2025-02-20.
How severe is CVE-2025-27088?
High severity. CVSS v3 base score is 8.2 out of 10.