What is CVE-2016-4561?

CVE-2016-4561 is a medium-severity vulnerability in Ikiwiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-05-10.

How severe is CVE-2016-4561?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Ikiwiki

CVE-2016-4561

Cross-site scripting (XSS) vulnerability in the cgierror function in CGI.pm in ikiwiki before 3.20160506 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors involving an error message.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2016-05-10 · 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: 0.015 (72.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Ikiwiki
Debian Linux — versions 8.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

source.ikiwiki.branchable.com/
www.debian.org/security/2016/dsa-3571 (vendor-advisory)
ikiwiki.info/security/ (Vendor Advisory)

Frequently asked questions

What is CVE-2016-4561?: CVE-2016-4561 is a medium-severity vulnerability in Ikiwiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-05-10.
How severe is CVE-2016-4561?: Medium severity. CVSS v3 base score is 6.1 out of 10.