What is CVE-2017-0365?

CVE-2017-0365 is a medium-severity vulnerability in MediaWiki, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2018-04-13.

How severe is CVE-2017-0365?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in MediaWiki

CVE-2017-0365

Mediawiki before 1.28.1 / 1.27.2 / 1.23.16 contains a XSS vulnerability in SearchHighlighter::highlightText() with non-default configurations.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-04-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.011 (66.6th percentile), scored 2026-10-24.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.6% 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: 0.011 · change: 0.000

Affected products

MediaWiki
Debian Linux — versions 7.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

lists.wikimedia.org/pipermail/mediawiki-announce/2017-April/000207.html (Vendor Advisory, mailing-list)
phabricator.wikimedia.org/T144845 (Third Party Advisory, Issue Tracking)
security-tracker.debian.org/tracker/CVE-2017-0365 (Third Party Advisory)

Frequently asked questions

What is CVE-2017-0365?: CVE-2017-0365 is a medium-severity vulnerability in MediaWiki, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2018-04-13.
How severe is CVE-2017-0365?: Medium severity. CVSS v3 base score is 4.7 out of 10.