What is CVE-2018-16277?

CVE-2018-16277 is a medium-severity vulnerability in Xwiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-09-28.

How severe is CVE-2018-16277?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Xwiki

CVE-2018-16277

The Image Import function in XWiki through 10.7 has XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-09-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000

Affected products

Xwiki

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

mksec.tk/index.php/2018/09/27/cve-2018-16277-xss-in-xwiki/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-16277?: CVE-2018-16277 is a medium-severity vulnerability in Xwiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-09-28.
How severe is CVE-2018-16277?: Medium severity. CVSS v3 base score is 5.4 out of 10.