CVE-2023-6784Network attack vector

Unauthenticated phishing email distribution

Published Dec 20, 2023 · Updated Nov 27, 2024

Improper input validation in Progress Sitefinity CMS allows remote attackers to distribute phishing emails through affected deployments. Progress has not published the affected input, code path, or validation error that enables Sitefinity to send the messages. Exploitation requires user interaction but no prior privileges, and the reported consequence is unauthorized email distribution.

CVSS severity4.7
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Progress Sitefinity CMS allows remote attackers to distribute phishing emails through affected deployments. Progress has not published the affected input, code path, or validation error that enables Sitefinity to send the messages. Exploitation requires user interaction but no prior privileges, and the reported consequence is unauthorized email distribution.

The record

CVE
CVE-2023-6784
Published
Dec 20, 2023
Updated
Nov 27, 2024
Vendor
Progress Software Corporation
Product
Sitefinity CMS
Classifications
CWE-20, CAPEC-163, CAPEC-98, T1566
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13.3 <13.3.7648
  2. Affected versionversion=14.1 <14.1.7828
  3. Affected versionversion=14.2 <14.2.7932
  4. Affected versionversion=14.3 <14.3.8029
  5. Affected versionversion=14.4 <14.4.8133
  6. Affected versionversion=15.0 <15.0.8223

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Progress Software Corporation · Sitefinity CMSversion=13.3 <13.3.7648; version=14.1 <14.1.7828; version=14.2 <14.2.7932; version=14.3 <14.3.8029; version=14.4 <14.4.8133; version=15.0 <15.0.8223

Published CVSS scores

4.3NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.7Progress Software CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-163Spear Phishing
CAPEC-98Phishing
T1566Phishing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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