What is the CVSS score of CVE-2023-6000?

CVE-2023-6000 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 64.0%.

Which versions of Popup Builder are affected by CVE-2023-6000?

Organizations using Popup Builder WordPress should be aware of moderate risk from CVE-2023-6000, a cross-site scripting vulnerability rated CVSS 6.1.

Is there a public PoC exploit available for CVE-2023-6000?

Yes, a public proof-of-concept exploit is available for CVE-2023-6000. Prioritise patching immediately. EPSS: 64.0%.

How to fix or mitigate CVE-2023-6000?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Popup Builder CVE-2023-6000

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2024-01-01 contact@wpscan.com

XSS WordPress Popup Builder

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:32 vuln.today

PoC Detected

Jun 18, 2025 - 15:15 vuln.today

Public exploit code

CVE Published

Jan 01, 2024 - 15:15 nvd

MEDIUM 6.1

DescriptionCVE.org

The Popup Builder WordPress plugin before 4.2.3 does not prevent simple visitors from updating existing popups, and injecting raw JavaScript in them, which could lead to Stored XSS attacks.

AnalysisAI

The Popup Builder WordPress plugin before 4.2.3 does not prevent simple visitors from updating existing popups, and injecting raw JavaScript in them, which could lead to Stored XSS attacks. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 64.0%.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The Popup Builder WordPress plugin before 4.2.3 does not prevent simple visitors from updating existing popups, and injecting raw JavaScript in them, which could lead to Stored XSS attacks. Affected products include: Sygnoos Popup Builder. Version information: before 4.2.3.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.