CVE-2023-3226Public exploitNetwork attack vector

Stored script execution via floating-button text

Published Sep 25, 2023 · Updated Aug 2, 2024

Stored XSS in Sygnoos Popup Builder before 4.2.0 allows remote authenticated users to execute scripts through crafted popup settings. The image-popup Floating Button Text setting stores attacker-supplied anchor markup without sanitization or output escaping and renders it in WordPress Admin. Administrator privileges and a site that denies unfiltered_html, such as WordPress multisite, are required; the script runs when an administrator clicks the floating button.

CVSS severity4.8
Medium
EPSS probability0.44%
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 Sygnoos Popup Builder before 4.2.0 allows remote authenticated users to execute scripts through crafted popup settings. The image-popup Floating Button Text setting stores attacker-supplied anchor markup without sanitization or output escaping and renders it in WordPress Admin. Administrator privileges and a site that denies unfiltered_html, such as WordPress multisite, are required; the script runs when an administrator clicks the floating button.

The record

CVE
CVE-2023-3226
Published
Sep 25, 2023
Updated
Aug 2, 2024
Vendor
Sygnoos
Product
Popup Builder
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 <4.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Sygnoos · Popup Builderversion=0 <4.2.0

Published CVSS scores

4.8NIST NVDCVSS: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.

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
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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