XSS in Redmine

CVE-2017-15573

In Redmine before 3.2.6 and 3.3.x before 3.3.3, XSS exists because markup is mishandled in wiki content.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.013 · change: +0.002

Affected products

Redmine — versions 3.3.0, 3.3.1, 3.3.2
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.redmine.org/projects/redmine/wiki/Security_Advisories (Patch, Vendor Advisory)
www.debian.org/security/2018/dsa-4191 (vendor-advisory, Third Party Advisory)
www.redmine.org/issues/25503 (Vendor Advisory, Permissions Required)

Frequently asked questions

What is CVE-2017-15573?: CVE-2017-15573 is a medium-severity vulnerability in Redmine, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-18.
How severe is CVE-2017-15573?: Medium severity. CVSS v3 base score is 6.1 out of 10.