What is CVE-2018-18823?

CVE-2018-18823 is a medium-severity vulnerability in Wolfcms Wolf Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2019-04-25.

How severe is CVE-2018-18823?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Wolfcms Wolf Cms

CVE-2018-18823

WolfCMS 0.8.3.1 allows XSS via an SVG file to /?/admin/plugin/file_manager/browse/.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-04-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Wolfcms Wolf Cms — versions 0.8.3.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.linkedin.com/in/subodh-kumar-8a00b1125/ (Third Party Advisory)
twitter.com/Subodhk62060242 (Third Party Advisory)
github.com/s-kustm (Third Party Advisory)
github.com/s-kustm/Subodh/blob/master/CVE-2018-18823.pdf (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18823?: CVE-2018-18823 is a medium-severity vulnerability in Wolfcms Wolf Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2019-04-25.
How severe is CVE-2018-18823?: Medium severity. CVSS v3 base score is 4.8 out of 10.