CVE-2025-23733

High

Published: 23 January 2025

Published

23 January 2025

Modified

23 April 2026

KEV Added

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Patch

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CVSS Score v3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

EPSS Score 0.0018 39.1th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-23733 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 39.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Deeper analysis

CVE-2025-23733 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the SC Simple Zazzle (sc-simple-zazzle) WordPress plugin developed by sayoko. This issue affects all versions of the plugin from n/a through 1.1.6 inclusive.

The vulnerability carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), indicating it is exploitable over the network with low attack complexity, no required privileges, but reliant on user interaction. Remote attackers can leverage reflected XSS to execute arbitrary scripts in the context of a victim's browser, achieving low impacts on confidentiality, integrity, and availability with a changed scope.

Patchstack's advisory documents this Reflected XSS vulnerability specifically in SC Simple Zazzle plugin version 1.1.6 for WordPress, providing details on the issue for affected deployments.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-3378

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in sayoko SC Simple Zazzle sc-simple-zazzle allows Reflected XSS.This issue affects SC Simple Zazzle: from n/a through <= 1.1.6.

CWE(s): CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.007 JavaScript Execution

Adversaries may abuse various implementations of JavaScript for execution.

attack.mitre.org →

Why these techniques?

Reflected XSS in public-facing WordPress plugin directly enables exploitation of public-facing applications (T1190) and arbitrary JavaScript execution in victim's browser (T1059.007).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1