What is CVE-2023-6784?

CVE-2023-6784 is a medium-severity vulnerability in Progress Sitefinity, classified under Improper Input Validation. CVSS score: 4.7/10. Published 2023-12-20.

How severe is CVE-2023-6784?

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

Improper input validation in Progress Sitefinity

CVE-2023-6784

A malicious user could potentially use the Sitefinity system for the distribution of phishing emails.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2023-12-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Progress Sitefinity
Progress Software Corporation Sitefinity — versions 15.0, 14.4, 14.3

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.progress.com/sitefinity-cms (Product, product)
community.progress.com/s/article/Sitefinity-Security-Advisory-for-Addressing-Se… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-6784?: CVE-2023-6784 is a medium-severity vulnerability in Progress Sitefinity, classified under Improper Input Validation. CVSS score: 4.7/10. Published 2023-12-20.
How severe is CVE-2023-6784?: Medium severity. CVSS v3 base score is 4.7 out of 10.