CVE-2024-3644Public exploitNetwork attack vector

Admin-level stored script execution via unescaped settings

Published May 16, 2024 · Updated Nov 20, 2024

Stored XSS in Newsletter Popup 1.2 and earlier allows remote authenticated users to execute scripts through crafted newsletter settings. The Add New workflow saves crafted text-input and textarea values without sanitizing or escaping them, and Manage Newsletters renders the stored values when a newsletter is edited. Administrator access and a later page view are required; script execution occurs in the viewer's WordPress browser context even when unfiltered_html is disabled.

CVSS severity4.8
Medium
EPSS probability0.37%
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 Newsletter Popup 1.2 and earlier allows remote authenticated users to execute scripts through crafted newsletter settings. The Add New workflow saves crafted text-input and textarea values without sanitizing or escaping them, and Manage Newsletters renders the stored values when a newsletter is edited. Administrator access and a later page view are required; script execution occurs in the viewer's WordPress browser context even when unfiltered_html is disabled.

The record

CVE
CVE-2024-3644
Published
May 16, 2024
Updated
Nov 20, 2024
Vendor
mndpsingh287
Product
Newsletter Popup
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 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=0 <=1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

mndpsingh287 · Newsletter Popupversion=0 <=1.2

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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.

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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
Privilegesadmin
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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