CVE-2023-0219Public exploitNetwork attack vector

Stored script execution via unescaped email previews

Published Mar 13, 2023 · Updated Feb 27, 2025

Stored XSS in WPManageNinja FluentSMTP before 2.2.3 allows remote authenticated users to run scripts via crafted logged email content. The email-log preview renders stored HTML email bodies without sanitizing the content or escaping it before insertion into the administrator-facing page. An Author-level or higher account must use another plugin that permits unfiltered HTML email, and an administrator must open the affected log preview; executed script runs in that administrator's browser context.

CVSS severity5.4
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in WPManageNinja FluentSMTP before 2.2.3 allows remote authenticated users to run scripts via crafted logged email content. The email-log preview renders stored HTML email bodies without sanitizing the content or escaping it before insertion into the administrator-facing page. An Author-level or higher account must use another plugin that permits unfiltered HTML email, and an administrator must open the affected log preview; executed script runs in that administrator's browser context.

The record

CVE
CVE-2023-0219
Published
Mar 13, 2023
Updated
Feb 27, 2025
Vendor
WPManageNinja
Product
FluentSMTP
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2025Record 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=0 <2.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPManageNinja · FluentSMTPversion=0 <2.2.3

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

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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