What is CVE-2019-8948?

CVE-2019-8948 is a critical-severity vulnerability in Papercut Mf, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2019-02-20.

How severe is CVE-2019-8948?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Papercut Mf

CVE-2019-8948

PaperCut MF before 18.3.6 and PaperCut NG before 18.3.6 allow script injection via the user interface, aka PC-15163.

Published 2019-02-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.039 (90.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

www.papercut.com/products/mf/release-history/ (Release Notes, Vendor Advisory)
www.papercut.com/products/ng/release-history/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2019-8948?: CVE-2019-8948 is a critical-severity vulnerability in Papercut Mf, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2019-02-20.
How severe is CVE-2019-8948?: Critical severity. CVSS v3 base score is 9.8 out of 10.