What is CVE-2018-8048?

CVE-2018-8048 is a medium-severity vulnerability in Loofah Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-27.

How severe is CVE-2018-8048?

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

Is CVE-2018-8048 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Loofah Project

CVE-2018-8048

In the Loofah gem through 2.2.0 for Ruby, non-whitelisted HTML attributes may occur in sanitized output by republishing a crafted HTML fragment.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-03-27 · 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: 0.019 (79.1th percentile), scored 2026-09-27.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.019 · change: -0.005

Affected products

Loofah Project
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/flavorjones/loofah/issues/144 (Third Party Advisory)
www.openwall.com/lists/oss-security/2018/03/19/5 (mailing-list, Mailing List, Third Party Advisory)
www.debian.org/security/2018/dsa-4171 (vendor-advisory, Third Party Advisory)
security.netapp.com/advisory/ntap-20191122-0003/

Frequently asked questions

What is CVE-2018-8048?: CVE-2018-8048 is a medium-severity vulnerability in Loofah Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-27.
How severe is CVE-2018-8048?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-8048 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.